Co-Written by Jss2141
San Fransokyo, the unorthodox yet amazing fusion of San Francisco and Tokyo. A place of wonder, technology, surprisingly a large amount of criminal activity. So much can be found here but do we have comic book heroes? Well...maybe not in the traditional fashion. Big Hero 6 was their name, a group of college scholars using their technological know-how to become superheroes and protect the city, not that they knew their secret identity for the matter of course. They were all led by a teenage prodigy genius who had been raised by a hard-working aunt that owned and ran a cafe...all by herself no less, her name was...
"Today's menu is looking good as always, Aunt Cass" Hiro, who was a genius prodigy, by the way, said.
The woman in question was currently wiping down the tables as her nephew and his friends were enjoying some lunch at their usual table.
"Thank you, Hiro. I had to have a long talk with a guy I know to get them that way." Cass said with a smile.
She enjoyed seeing her little boy have actual friends for him to socialize with rather than stay cupped up in his room all day with nothing but his tech, which was never healthy. Maybe all geniuses were awkward because they didn't have friends who understood them?
Of course, that would mean the group he now calls his friends, were all like him at one point. Though that was hard to imagine in her opinion. Fred was a nice body, energetic and positive; Wasabi was a gentleman that always showed manners and was organized, and the girls…..well their appearances spoke for themselves. One was a bottom-heavy 'cool' girl who acted like she was better than everyone else and didn't care much about stuff or so her appearance seems to give that vibe but she was nice, Gogo Tomago was her name.
'Girls like that seem to have ass for days'
While Gogo seemed like a bad girl, Honey Lemon was the opposite. A girl that saw the brighter side of everything and loved everything cute, her body gave off an amazon vibe because she was a bit tall.
'How could she be friends with Gogo when they're so opposite?'
Cass always had a good discerning eye when dealing with people and she could notice how Hiro would sometimes act all awkward around her, saying silly things and then trying to disguise them as if he actually meant to say it. Not to mention the blushing, was this perhaps one of those moments where puberty comes hitting like a truck?
'Oh! My little Hiro is becoming a man!' Cass thought with some glee and some sadness.
He was growing up so fast, it seems like yesterday she took him in after her brother-in-law and sister passed away.
'I wonder if he likes girls with plump butts like her, Hiro is at that age after all but if he keeps taking glances like that while being so nervous the possibility of her seeing it will increase. The last thing I want is for someone to call him a pervert'
When dealing with hormonal teens, there wasn't much you could do to help, one can always give them the talk but it always ends in being too awkward. Maybe what she could do to help him out is being subtle at it, to help him get used to this kind of girl? Perhaps that just might work.
"Alright, Aunt Cass, we'll see you later," Hiro said as his group finished their food, ready to head to The college.
"Thanks for the delicious meal, Ms. Hamada." Honey Lemon said with a smile!
"Awesome as usual," Fred said with two thumbs up.
''Thanks, guys, you're all too kind" 'That settles it, I need to make Hiro get used to girls like Gogo, that's my job after all' She smirked.
Our boy Hiro on the other hand had no idea what his aunt was going to start doing every day for each time he would be staying home now. Cass waved them goodbye as she was thinking of her plan to help Hiro with well-bottomed girls.
'Now, what should I wear?' Cass thought as she continued to work the breakfast rush.
*A few hours later*
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"Phew, what a day"
Hiro had just returned home from a tiring day at inventing and hanging out with his friends, luckily nothing insane has happened so far.
'Man why does Gogo have to wear such tight-fitting pants? I have nowhere to look if she keeps getting that cute'
Some may think it's crazy to call someone like Gogo cute but Hiro didn't mind, even if he knew Gogo would hurt anyone that called her cute. Being a bad girl with a genius mind made it hard not to find her attractive or cute as Hiro put it, but that's a topic for another time. As Hiro was walking into his home, he noticed a lack of customers in the cafe.
"Huh, guess Aunt Cass closed early. She usually stays open a few more hours after lunch." Hiro said as he began walking upstairs.
"Are you there Hiro?" Aunt Cass calls.
"Yeah it's me, I just arrived"
"Oh good, could you come up here? I need your opinion on something"
"I am right up," Hiro said before turning to his best friend/brother's invention, Baymax. "You can go to the charge port in the kitchen, I'll come to get you before bed"
"Okay, Hiro," Baymax said before he waddled to the kitchen charge port.
Saying bye to the big walking marshmallow, for now, the young teen goes upstairs to see what his aunt wanted to show him. The door to her room seemed to be just slightly open.
"Are you in your room, Aunt Cass?" Hiro asked.
"Yes, I am. Please come inside." Cass called out from inside.
Taking her word for it the black-haired genius boy grabbed the doorknob and entered inside, not knowing in the slightest what awaited him.
"Ok I'm here, what did you want to show me?"
"I just needed your opinion on this new outfit I'm trying on," Cass said to him.
Hiro noticed her voice coming from the left and checked her by the closet. There his aunt was bending over to grab something before standing back up, wearing what seemed to be booty shorts, tightly wrapped around her big buttocks and childbearing hips.
Hiro felt his voice hitch as his face quickly began blushing at the sight of her big booty aunt clad in such tight shorts! It made him finally notice how young she looks for her age!
"Tell me, Hiro, do you think I can pull off the booty shorts look? I wonder if only young girls can use it" She turns around, asking him with a smile.
"Uh…uh…I…" Hiro stuttered out, finding his mind hard to focus.
"Also I am a bit ashamed but I think I gained some weight. Do you think these shorts make my butt look fat?" She said while pulling them up a little as if she thinks they are giving her a wedgie.
"N-NO! Not at all!" Hiro said, waving his hands to not offend his aunt. "You're not fat at all!"
This made Cass happy, seeing her nephew knew better than to call a girl "fat." That was suicide before he could even get the first date.
"Thank you, Hiro. That means so much to me." Cass said with a bright smile!
"A-Anytime"
"You don't mind giving me your honest opinion on a few dozen more outfits of my choosing right?" She revealed.
In both her hands, Cass held up several short pieces of clothing that she wanted to model for him. It made his brain crash a bit as he already imagined what she could look like in them, her moderate vest and impressive hips clad in those tight, small clothing!
"Oh, would you look at that? My yoga pants, oh man it's been so long ever since I had time for that, I wonder if it still fits"
Turning to the old yet flexible sweatpants, Cass headed to the closet to change into them as Hiro was still standing in shock with a massive blush on his face and his pants feeling a bit tighter.
"Nghhh!" She pulls them up and it gets in, not before making her ass meat shake left and right "Damn, it's so tight it's like a second layer of skin, feels almost as if I'm not wearing nothing at all"
Outside the closet, Hiro could still hear her words and blushed brighter than before!
'Nothing at all?' he repeated in his mind, almost imagining it before shaking his head. 'Dirty thoughts! Go away!'
"Maybe I should go back to doing yoga in the living room, why do you think Hiro? You can join on it too and we can do it together"
"Y-Yoga? Together?" Hiro asked, stuttering as he thought of it.
Him and his aunt standing side by side or him standing behind her as she bent down, showing her ass in tight pants or her restricted chest in a tank top. Sweaty, breathing heavy, and showing how flexible she is despite her age.
'Oh god!' "S-Sorry, I have to go to my room now and...s-start doing my homework early so I can be free for more personal projects"
Hiro decided enough was enough and ran out of her aunt's room and went to his own bedroom leaving Cass with her own thoughts. You didn't have to be a genius to know what he actually wanted to do in his room.
'I bet he got an erection after seeing me in these shorts and pants, I still got it!'
That was not over yet, she wanted him to get used to big booty girls, maybe this approach was too strong but it was the only way, feeling curious Aunt Cass decided to check on him, and maybe learn what she was dealing with. With the yoga pants still on her body, Cass made her way out of her room and headed up to Hiro's room. Baymax had walked back and stopped to greet her for a moment.
"Hello, Aunt Cass." He said with a wave before continuing to walk to Hiro's room.
"Hello, Baymax" She said before following behind Baymax.
But then she stopped for a moment and decided to tell him something.
"Listen Baymax I am going to be teaching Hiro about some things, is my job as his aunt so in case you hear something weird upstairs, don't worry is all part of it ok?"
"Yes, I understand," He simply said.
"Good"
"And don't tell him I'm coming, okay?" Cass asked him.
"Understood," Baymax said as he continued with Cass following.
Entering the room from the steps while Cass stopped at the steps, Baymax waved to Hiro as the young genus was facing a computer.
"Good evening, Hiro." Baymax greeted.
"H-Hey Baymax, it's already time for you to go into sleep mode?"
"It would appear so, yes. Good night, Hiro." Baymax said as he walked over to his charge port, stepping on and deflating to collapse into it to charge.
"Oh thank goodness," Hiro mumbled to himself, thinking he was alone.
'He's all alone now.' Cass thought as she moved up the steps a bit to see him better.
"I can't believe how hard I am right now, damn it, Aunt Cass, why did you have to ask for my opinion?"
Hiro lay down on his bed for a while to take a deep breath before moving to his shorts, a large bulge could be seen wanting to get out even if it meant ripping out a hole and being free.
"Must...jerk...off" Hiro told himself, almost as if his energy was high down below and doing anything else was hard.
Unbuckling his pants, pulling the zipper, and yanking his shorts down; Hiro sighed in relief as his third leg was free and put his head in his pillow but doing this made him miss his aunt, gasping at the sight and blushing brightly!
'Hiro…..you really are a BIG boy!' She thought with her jaw dropped!
Was that his real dick? It's unbelievable, to think Hiro had such a thick member hiding on his pants all this time. His balls looked extra pent up almost as if he had been deprived of masturbation for weeks!
"Man, it's been too long. And I still can't explain why it's this big." Hiro said, somewhat complaining about his large tool.
He never asked Fred or Wasabi about this but he could at least assume they AREN'T this big of male genitalia, NO MALE COULD HAVE ONE THIS BIG COULD THEY?! But Hiro could research it later with a privacy program he could create, right now he just needs release before his blue ball-like state gets worse!
'Hmmm...Looks like I need to change up my tactics, just teasing him won't do it if he gets rid of the sexual energy like this. Looks like a more direct approach will be necessary, but should I go as I'm looking now or maybe I should dress up in something even sexier?' Cass wondered about it.
Looking down at her clothes, Cass thought about what she could wear besides her usual shirt and her tight yoga pants. She had many other outfits that could really get his attention but she didn't know which one to pick.
'Though, Hiro did seem to like the shorts. Maybe a nice top to match could help.' Cass thought as she pulled on her shirt, thinking a boob window could help her help Hiro.
Meanwhile, she went to change back, Hiro started jerking his big cock while thinking about the things he wished he could do with Gogo. She could be so cold sometimes, it would be amazing to dominate that cool girl like alpha or so he thought.
'Gogo...' Hiro thought as he used both hands to rub his large cock.
How much would he love to just squeeze those big ass cheeks and shove his face in between, god! Will, he ever manages to have a girl for him that would be as sexy as her?
'If only she was my age! And easier to talk to!' He thought as he moved his hands faster, thinking about Gogo until….his thoughts changed.
His mind switched from the cold but sexy Gogo to the caring and sweet Cass, his aunt
'Man...when did my aunt get so sexy? Am I even allowed to feel like this?'
His mind said no, but his hand increased speed onto his manual work as if the body disagreed with it more than anything. He may have been embarrassed seeing his aunt like she was before but in truth, he loved it! He wanted to be closer to her body, he wanted to feel it, Hiro wanted to do dirty things with her that he would want to do with Gogo!
"I wonder...did you ever imagine using that big boy on someone?" The female voice was heard inside his room.
"Oh yeah I would love to do t-" Then he registered what just happened "Whoa! Wait for what? Who is there?
Inside Hiro's room was his aunt who for some reason was wearing a trenchcoat that covered her body, like she was going to sell something illegal and hid all of it inside, but in this case, there was only one thing she wanted to show.
"It's just me, Hiro," Cass said with a kind smile.
"AUNT CASS!" Hiro shouted, panicking as he sat up, removing his hands from his cock.
"No point hiding your third leg now boy. I know what is going on with you"
She then went to remove the trenchcoat in the most fashionable way possible, Aunt Cass shows Hiro the true sexiness of her body, showing that all these years it never lost its luster. She was wearing a pair of black lace bra and panties that made the mature women's big booty and round bountiful breasts look appealing like a premium steak and the smell that came from her was the perfume of quality that could be evaluated as fancy.
(A\N: Look upon deviant art *Aunt Cass All Alone~* by RealRavenRavenRaven to see how she looks in this chapter. I would put up the link in separated parts but I'm playing safe)
"And I am here to help"
"Guh!" Hiro grunts in surprise, unable to speak with the amazing sight before him!
If he didn't have a nose bleed before, he certainly has one now as he took in Cass' perfect body, and the perfume she wore made his mind go crazy!
"It must have been tough for you huh? Being friends with such a thick girl while having that big dick, acting all awkward cause you don't know how to act normal around her" She starts walking towards him "Let's change that ok?"
Moving into the bed, Cass laid next to Hiro and moved to grab his cock with one hand.
"Uh..A-Aunt Cass what are you doi-OHN SHI..." He held in the swear when feeling her fingers wrap around his manhood.
"It feels so warm in my hand and it's pulsing so hard, you must really be excited to become like this. Hiro," she said as she moved closer, pulled his head to the nape of her neck as she put all her fingers on the cock. "I can't even get my entire hand around it. You'll make a lucky girl very happy"
"A-Aunt Cass, what is going on? Why are you doing this?" Hiro was confused.
"Shhh, when I'm done with you Hiro, you won't be that weird out around girls. Now do me a favor and relax while I drain your jewels a little"
Cass kissed him on the forehead as she began moving her hand up and down his cock, feeling Hiro shiver against her as he treated his cock with care.
"Does this make you feel good honey? Is my hand putting your dick to the edge?" She licked her lips.
"A-Ahn~ Yes...oh man, this feels great, it's like my dick is gonna explode" He could already feel, his member wasn't used to this attention and pleasure.
"Good. Then just relax and let go, you'll feel even better when I'm done." Cass said as she began going faster, her hand becoming a blur as Hiro moaned loudly from it.
"No! Wai-Ahhhn! Oh god, slow down Aunt Cass I-I can't hold it in if you keep doing it so rough"
"Oh, I'm sorry sweetie, I'll slow down a bit," Cass said as she moved her hand slower before, making Hiro hiss in pleasure! This had the opposite effect of calming him down as it teased his cock with slow pleasure!
"Oooahh..." Drool falls from his mouth "I'm sorry AHHGNN!~" He arches his back before shooting a mighty blow that takes leaps in how far it went.
Cass held his head close to her neck as she watched Hiro cum, biting her lip at how much and how high his stream fired into the air.
"Oh dear, did it feel this good Hiro?" She said, giving him a nice kiss on the cheek.
"I-I-It felt great." Hiro huffed out, a goofy smile on his face. "I've never come that much before."
"It was a bit too fast though, you gotta learn how to control it if you want to impress a girl Hiro. Stamina and endurance are the keys" She said, getting up and laying on his bed, belly first.
"H-How do you suggest I work on it?" Hiro asked.
She gives her ass a quick slap "Let yourself enjoy what you truly want until the heart is satisfied"
"Y-Y-ou m-m-mean…" Hiro stuttered out as his cock was getting hard again.
"Do whatever you want to me. I think the slang for this is still good, rimjob, spanking, hotdogging, anal, even pussy action if you pull out." Cass said with a wink. "Anything you can think of, go on and try it. I won't stop you."
Hiro felt like smoke was coming out from his ears when she said he could go all out, was this for real? Her aunt's ass and is all for him to touch?
"T-THANK YOU VERY MUCH!" He said before going for it.
Moving off the bed, Hiro knelt above Cass' legs and gazed at her ass. So soft and sexy, like a perfect pillow and it was ALL HIS!
"Yes..."
That's all he said before suddenly shoving his face onto the mountainous booty cheeks of his Aunt's ass after she invited him to do it.
"OH!" Cass moaned in surprise, not expecting him to dive in so fast.
'Oooh yes! Yes! YES!'
Hiro now was letting go of all of his inhibitions and began to grope those big pieces of fat from the human female body guys like him loved so much, all the while motorboating them with his face left and right.
"MMM! Right there!" Cass moaned, putting a hand over her mouth to keep from being too loud.
"Your ass is so big, Aunt Cass," Hiro said, removing his head from her valley before going to one cheek and starting sucking on it, just like someone trying to leave a hickey.
Cass moaned from the sudden sucking, thinking that he was trying to mark her ass with his hickey! And she actually liked the thought!
"Oof! You sure like them thick huh Hiro?"
Cass knew the answer but he wanted Hiro to say it about her, her body may be old but it was still in its prime! Nice and sexy for any man to ravage but right now, she wanted Hiro to ravage her!
"Yes! I do! And you taste good right now!" Hiro moaned out, popping off from one cheek and moving to suck another while spanking her a bit.
"Ahn!~Oh yes sweety, keep spanking my ass, I love it when all this meat shakes up by a strong hand"
"Then I'm gonna spank it raw!" Hiro said, putting more force into his next slap.
*Slap* *Slap* *Slap* *Slap*
*SLAP!*
One after the other he went for it and spanked her aunt's ass like it was a toy. Cass shoved her face into a pillow, unable to stop herself from moaning anymore, and muffled them with the pillow.
'Oh god, he's not stopping!' She thought!
"Yeah, who is a nice big booty? You are" He gropes a cheek "Your my sexy little pile of fat who I'm going to have fun with," He said with a bit of sadism before grabbing his member with both hands as if he wanted to emphasize its size.
'That's a little stra- OOOOH!' Cass thought before jolting from something BIG dropping between her ass.
Pulling her face out of the pillow, Cass turned around and saw Hiro had dropped his large cock between her ass. It was now full and hard again as her sexual desire rose again!
"Get ready Aunt Cass because I am going to move my hips until my meat leaves friction burn marks on your ass pudding cheeks," He said confidently.
"Friction burns? Do you really plan on going that fast?" Cass asked, finding the scientific sexy talk somewhat arousing.
"Yes I do, so get ready because this is gonna be good," Hiro said with a determined look.
The boy genius began by moving his hips back and forth hotdogging her big ol ass cheeks like he said he would, they were so soft and squishy, jiggling with the slightest of movements. With every hit of his hips against her ass, Cass moaned in pleasure as her ass clapped against the long rod.
"Oooh yes! Aunt Cass your ass feels so good, it's like being embraced by a warm pillow"
"Ooooh! And your cock feels so good too!" Cass moaned, feeling the friction building up again!
"Bigger than any other guy you've ever seen?" He felt like asking that.
"Yes! Dear Lord, how are you so hungover Hiro? Keep humping my ass, don't stop!" She bit her lip.
"Wasn't planning on it anytime soon!" Hiro said as he moved his hand around her waist, planning to finger her pussy.
"AHHN!~" She moaned loudly 'This kid is making me feel so hot'
"I won't be able to hold for long Aunt Cass but I enjoy it as much as possible, and make it count"
"I told you don't hold back! Show me everything you've got!" Cass moaned out!
"HERE IS WHAT I GOT!" Hiro started moving his hips like a dog in heat humping a pillow.
Both of their moans filled the room as they grew hot with their sweat and loud with the sound of their bodies slapping against each other.
"AH, SHIT! IT'S HAPPENING!" Hiro felt his balls boil and clench once more, telling him to bust a nut.
'He's gonna bust! I want it on my back!' Cass thought as she wrapped her legs around Hiro, not letting him go as he began moving his hips faster!
*Splurt* *Splat* *Splash*
"AhhhHHhhhh~ Ooohhnn!" Hiro groaned loudly as he blasted thick streams of sperm.
Cass moaned as she felt the warm cum hit her back, silently cumming herself as some of the cum hit the pillow next to her.
'Ooooh.' She thought before licking it from the pillow.
"Ahhhn! Fuck this one came out like a rocket, damn it feels so good, I could go on forever if I could" Hiro said, enjoying this more than anything.
'Oh god, I really hope you do, Hiro!' Cass thought as she stopped cumming, taking deep breaths after her rush of ecstasy!
"You ok there?" He asked.
"WONDERFUL! I haven't felt this good in years!" Cass said as she looked towards Hiro. "If you want to go further, just ask or tell me which way you want to go."
"Which way?" Hiro asked.
"I mean, tell me if you want to fuck my pussy or my asshole," Cass said bluntly as she shook her ass a bit.
Hiro was taken aback "Wait what? Actual sex? You planned to go this far?"
"I took 2 birth control pills and spermicide." She said, knowing Hiro was smart enough to know what those did.
He blushes "Oh! Ahn...I guess I just didn't expect that"
"Neither did I think to go this far but now? I'm totally up for it"
"….I was that good?" Hiro asked, nervous yet eager for an answer.
"You. Were. Wonderful. Any girl will hit the jackpot with you." Cass said with honesty.
"That's great to hear"
"I bet Gogo would love it too, you kept ogling her body" She smirked.
"Yeah…., I did," Hiro said, just realizing that he hasn't thought about Gogo since Cass did this.
"I think she would be impressed with this wrench you have with Hiro. But enough about the big ass punk girl, there is something else that needs your attention~"
Turning over, Cass moved up in Hiro's bed and spread her legs open for him. Her pussy was wet and waiting while her asshole clenched in anticipation. Which one would he pick?
"F-Fine" He aims at her pussy "I won't dawdle anymore, get ready Aunt"
"I know you won't, and don't be nervous. Just take it slow and push it in at your own pace." Cass said as Hiro got up on his knees on the bed. "Take a death breath and push in when you're ready"
"Okay," Hiro said before taking a deep breath.
With what she had told him, Hiro went to slowly insert his huge meat inside his aunt's coochie allowing her to take every inch of it. Cass held back a moan from the penetration, enjoying every inch pushed inside as Hiro moved closer and held her by the hips.
"I-Is it good?" Hiro asked her, looking up at her elated face.
"Y-Yes! You're doing great, Hiro!" Cass said as she gently cupped his face. "Just r-remember what I told you. At your own pace."
"O-ok!"
Cass just stayed there on the bed feeling her nephew huge dong and when he got used to the feeling of his member in her pussy, Hiro started moving his hips back and forth, learning how to fuck his first pussy, stretching her limit on how much she could take it before losing it. Would the lovely woman cum first this time because she was not used to this or would he once more?
Only time would tell as Cass wrapped her arms around Hiro's shoulders to hold him close. It really had been a long time since she had done this with a man, almost making her seem like a virgin again! He kept pounding her really hard and fast, nonstop just the way a horny teen with no experience would do, but she loved it! She had a kink of wanting to be treated roughly like that as if she was a piece of meat who was only meant to satisfy the big-dicked stud.
"Oh! Uh! Oh, Hiro! Yes, that's it! That's it!" Cass moaned as she pulled him close, wanting him to go deeper inside her!
"Ahhhn! Aunt Cass, it feels so hot and tight inside you, it's like my head is spinning"
Hiro was giving his best to last long, almost immediately wanting to cum after just a few thrusts but he wanted to last as long as he could to make Cass feel just as great as he did.
"I-I don't doubt the efficacy of the medication that prevents pregnancy but should I really cum inside? I feel like it's going to be a huge mess" He said, gritting his teeth.
"It's fine! It's fine! You can cum inside but only this one time! You should never CUM inside a girl without protection!" Cass said from the jolt from a hard thrust in the middle.
'Unless they want to' "Oh yeah!" Hiro went full piston humping mode, wanting to impregnate her Aunt even if it was impossible for now.
Before he even knew it, Hiro pulled Cass from his backboard to lay her on the bed and fuck her in a missionary position. She moaned loudly as she wrapped her legs around him to pull him deeper!
"AHHH FUCK! uh! Uh! uhhh!" He moaned louder each time, reaching a breaking point.
"Hiro! Hiro! Hiro!" Cass moaned out, looking into his eyes as she was lost in passion!
Without even thinking, Cass pulled Hiro into a deep kiss and stuck her tongue around in his mouth!
'I-I can't hold it any longer, take it, aunt! Take my seed'
Hiro screamed mentally before doing a few more thrusts until *SPLAT* more thick streams of his cum were blown and this time inside her womb.
"MMMM!" Cass moaned into the kiss as Hiro kissed back, holding him close as her womb quickly filled up.
'Oh god! There is so much, it's flooding my insides, that's it, Hiro, pour your pent-up hornyness inside aunties pussy ahnn fuuck!'
Cass kept her grip as she felt her passion overflow along with the seed in her pussy. After a while he stopped cumming and humping her, just leaving his body all soft to rest on top of her body, now totally tired. Cass also went limp as she laid on the bed, letting Hiro rest his head on her chest to gain back his energy.
"I bet...you're feeling better now?" She asked.
"Y-Yes...this was draining, in more ways than one"
"Yeah, sex always is but it's a good feeling. I hope you'll remember this for the next lesson." Cass said, wiping some sweat away.
"Yeah...NEXT TIME?!" Hiro asked in surprise!
"Of course, this was just for you to release your frustration and energy, we need to work on that stamina if you ever want to impress your future big booty girlfriend that you have more than just a brain" She giggled.
"A-Are sure this is fine?" Hiro asked her.
"Of course it is. You can come to me for anything, Hiro but let's keep this our little secret." Cass said, kissing Hiro on the forehead.
"Yeah...that's for the best, thanks a lot Aunt Cass"
The two of them rested on each other's arms before sleeping the night away in the embrace after sex. Neither of them knew it at the time but these classes would actually bring them closer together. Not as nephew and aunt but as secret lovers.