Chapter 4: Lisa's Breakfast

Tragedy struck when Bart and Homer arrived home. Just as they walked through the front door, Santa's Little Helper ran up to greet his owner. The young boy had not expected the energetic dog to jump at him as soon as he opened the door. As a result, he fell down and dropped the HypnoBox. The cheap plastic shell shattered as it hit the floor.

"No!" Bart yelled. He pushed Santa's Little Helper off of him. "Bad dog! Very bad dog!"

"Welcome back! Did you boys have fun?" Marge shouted from the kitchen where she was preparing dinner. But Bart was too defeated to give her an answer. He was desperately collecting the pieces of the HypnoBox and trying to put it back together. It was useless. The thing was beyond repair.

Oh, to hell with this! I'll just have to buy a new one.

"Dad?" Bart said. "Do you remember what we discussed in the park?"

He was trying to test if the hypnosis was still in effect after the device had broken.

"Must not get mad. Must let son have sex with wife and daughter."

"Shh!" Bart covered his father's mouth. "Okay good. Here's a new order: you can't talk about what we discussed to anyone. Understand?"

"Must not discuss," Homer replied lifelessly.

"That's my man! Now borrow me your credit card."

Homer took out his wallet and gave his credit card to Bart without questions. The boy rushed upstairs. He could hear Lisa playing the saxophone through the walls. Soon enough she would be blowing something other than the sax, he'd make sure of that. He just needed to order a new HypnoBox.

Bart got on his laptop and searched the dark web for the website where he had purchased the fragile yet effective mind-control device. But no matter how much he searched, he could not find it. Had the website been taken down in the last two days? It honestly wouldn't surprise him considering how dangerous the HypnoBox could be in the wrong hands.

Oh man! Why wasn't I more careful? That was my one chance and I blew it. Even if Homer is under my control, what good does that do me when Lisa and mom are unaltered?

"Bart! Lisa! Dinner's ready!" Marge yelled from downstairs. Bart reluctantly turned off his computer and left the room, slumping his shoulders in defeat. Lisa was still playing her sax, so she probably hadn't heard her mother.

"I guess I'll get her," Bart thought apathetically.

Lisa was facing away from the door. She was sitting on her bed, fully immersed in her bluesy song. Bart listened for a while before walking up to her and sitting next to her on the bed. Upon noticing him, Lisa played a wrong note and stopped.

"Bart! You surprised me! You're supposed to knock before you come into someone's room."

"Sorry, Lis," Bart said, looking at the floor. "Mom says dinner is ready."

"Oh, okay…" Lisa said. Seeing Bart's sorrowful expression made her look worried. She put her instrument in its carrying case and sat down next to the boy. "Hey, are you okay? You look like something bad happened."

"Yeah, I broke something irreplaceable that I needed to change things for the better."

"What are you talking about, Bart?"

"It doesn't matter now. Point is, I screwed up my one big chance at turning my life around."

Lisa gave her brother a compassionate smile and hugged him. "There, there. I don't know what you're going through, but things will work out."

"Lisa…"

Bart looked at his little sister's loving eyes. She was such a good girl. Even if she was a smartass who gave moral lectures to the rest of Springfield on a daily basis, he still loved everything about her.

"Lisa!" Bart exclaimed as he pushed his sister down on her back on the bed and got on top of her. He didn't need to hypnotize her to show her how he felt.

"Hey! Bart, what are you doing?" Lisa said, trying to push him off.

"Don't act like you don't know. You were deliberately teasing me in the morning, weren't you?"

"Huh? Teasing you? About what? I didn't even see you in the morning, because you didn't get on the school bus, remember?"

"Oh, stop pretending. You know exactly what happened. You knew where I was hiding… and you let me… and then you drank my… uhh…"

Bart couldn't even bring himself to say what had happened. They were siblings who had known each other since birth after all. He couldn't just say to her face that he had cum on her ass and that she had wiped the semen with her hands and licked it off. Normal siblings didn't do that kind of stuff. And the few weirdos who did would certainly not dare to admit it. It was no wonder that Lisa didn't want to talk about it either. She was a morally upright straight A student with a bright future ahead of her. If the world found out that she was doing lewd things with her older brother, that would ruin her future career. Maybe it was fine if they both kept pretending that there was nothing strange going on between them.

"Bart…" Lisa whispered, putting her hand on his cheek. "We should… unff…"

Bart shut her up with a kiss. There was no need for words. They could just keep using their bodies to communicate their feelings for each other. Lisa seemed shocked at first, but then closed her eyes. She was no longer trying to push him away. When Bart finally broke the kiss, Lisa was panting with blushed cheeks.

"Bart, we shouldn't," Lisa said weakly. "We're brother and sister, it's not going to work out. Let's just keep things as they are. We've had fun these past few days, haven't we? We can keep living like that. But if we cross a line, well…"

"I love you, Lisa," Bart said passionately. "If I'm going to cross the line with someone, I want to do it with you."

Lisa's eyes widened. "I… I love you too, Bart. But we just can't…"

"Why not?"

"I already told you. We're siblings. Besides, mom and dad would kill us…"

"You don't have to worry about dad. As for mom… well, she might have a problem with it. But I'll think of something."

Suddenly the door to the room opened. Marge was standing there.

"I said dinner was ready… Bart! What are you doing wrestling with your sister?"

Bart immediately jumped off the bed, flustered. Lisa also got up and fixed her messy hair and wrinkled dress.

"Don't worry, mom. I was just showing Lisa this cool chokehold I saw on TV the other day. We weren't actually fighting!"

"Uhh, yeah, that's right," Lisa went along with the lie.

"Lisa, when did you get interested in pro wrestling?" Marge asked.

"It turns out that Bart and I have a lot of common interests," Lisa giggled. "He was just telling me that he had recently gotten into jazz and was asking me for album recommendations."

"Aww, isn't that nice!" Marge smiled, putting her hands together and tilting her head with proud motherly joy. "I'm so happy that you two are finally starting to get along. There's nothing more important than family."

The two siblings followed their mother downstairs while holding hands.

When they sat down at the kitchen table, Lisa moved her chair closer to Bart. So much closer in fact, that their shoulders were touching.

"You two are just adorable," Marge said. She began feeding Maggie. Bart took his fork and began eating the chicken and rise. At the same time, he moved his left hand on Lisa's supple thigh and squeezed it gently.

"Bart, not now," Lisa whispered. Marge didn't seem to pay attention to them, but she was just a few feet away. "Mom's right there. If she catches us, she'll freak out and send both of us to therapy. Then we won't be able to see each other anymore."

"Then we'll just have to make sure we don't get caught," Bart whispered cockily and continued massaging his sister's thigh. Her flesh was so soft and malleable. Like a stress toy, but much better. "Besides, doesn't doing this in front of mom make it that much hotter?"

He began moving his hand up her thigh and toward her crotch. Lisa stopped him by grabbing his arm.

"Bart, no. It's too risky. I don't want to lose you."

"What are you two whispering about?" Marge asked.

"Nothing," Bart said, quickly drawing his left hand back.

Damn! I was so close to touching her pussy.

Lisa put her hand on top of his on the table and smiled gently. "Let's just eat normally. We can have fun later."

Bart gulped. Just what did his cute little sister have in mind for them?

Later that evening Bart knocked on the door to Lisa's room.

"Come in," Lisa said, sounding busy. Bart opened the door and saw his sister hunched over at her desk, tapping away on her laptop.

"Hey, Lis. Whacha doing?"

"I have a history essay due tomorrow," she saved the document and turned on her chair to face her brother. "I'm sorry, Bart. I know I said we could… hang out. But I need to get this done."

"That's fine. I'll just take a minute. We'll just pick up where we left off," Bart said, bringing his hand to Lisa's thigh. He put his other hand around Lisa's head and pulled her face closer to land a kiss on her lips. Lisa indulged in the moment for a couple seconds before pulling herself away from Bart.

"Sorry, Bart. I can't."

"Why? Mom's not here."

"It's not just that," Lisa couldn't look her brother in the face and her face was dyed red. "It's… embarrassing… to do these things when I can actually see you…"

"Oh…"

Bart was beginning to understand. Lisa could be bold with her teasing just as long as she could pretend that it wasn't even happening. What the siblings had done in the morning had only been possible because Bart had been camouflaged in the bush. Lisa knew he was there, but she couldn't see him, which made it less awkward for her to bend over for him and act like she was digging inside her backpack.

"I get it, you're shy," Bart said, patting his sister's spiky hair.

"It's not just that," Lisa mumbled. "Incest is… wrong. We shouldn't do it regardless of whether or not mom finds out."

"Shh," Bart hushed her. "I get it. We're moving too fast. Let's slow down and take some time to sort out our feelings. I won't push you anymore."

With that said, Bart turned around to leave the room. "I'll leave you to your essay. See you in the morning."

"Wait, Bart," Lisa called after him. "Can you… can you come by to kiss me goodnight around 9:30? I should be done with the essay by then."

"Sure thing, sis," Bart said with a dependable brotherly grin. Lisa's embarrassed face lit up with an adorable ecstatic smile.

After having kissed his sister goodnight, Bart was lying in his bed and reassessing his situation. The bad news was that the HypnoBox was gone and couldn't be replaced. The good news was that he had confirmed that Lisa already had forbidden feelings for him, even if she was a little conflicted about them at the moment. Homer was under his command, so he was a useful tool. But Marge was her usual self and would be even harder than Lisa to convince into having a sexual relationship with him. As for Edna… their relationship was on the right track, but he didn't know how far he could take it.

She's my teacher. She knows she'll get fired and arrested if she ever gets caught having sex with a student. It's not in her interest to fuck me. But she definitely enjoys teasing me and loves it when I compliment her… Maybe I can use that to my advantage.

As for Lisa, she's too shy as she is right now. I'll need to train her gradually to overcome her embarrassment before she'll be ready for more next-level stuff. As hot as it was to kiss her and masturbate to her from a bush while she teased me, I want to get even more intimate with her.

As things stood, Marge was the biggest obstacle. It would take a lot of effort to make her okay with cheating on her husband with her son. But then again… Both Edna and Lisa seemed to have the hots for him. Maybe he was simply irresistible to women without even knowing. Maybe, just maybe, Marge too had some secret lust for her son that she was simply trying to hide behind her motherly love.

"I'll have to test it in the morning," Bart decided. "I'll do something that should give me a clue about how mom really feels about me. I suppose I could engage her in some slightly sexual dirty talk and see how she reacts. But I need to be careful not to let her find out that I want to fuck her."

The next morning Bart picked the perfect spot at the table to admire his mother's huge butt as she was making eggs. He was considering whether he should compliment her figure or walk up to her and slap her ass mischievously. Based on her reaction he would get an idea how she felt about being sexualized by her son.

Naturally he also needed a backup plan in case his sexual harassment angered Marge. He had arranged for Milhouse to take the blame by claiming that he had dared Bart to do it. The spiky-haired boy didn't much care for the bespectacled dweeb who had the hots for his sister, but Milhouse's undying loyalty made him an excellent fall guy for getting out of trouble.

"Your father has really changed," Marge said.

"Really? I hadn't noticed," Bart replied coyly.

"Yesterday I asked him to walk the dog, go grocery shopping and clean up the gutter. He did all of that without grumbling. He didn't even stop at Moe's on the way to the store! What did you do with him at the park yesterday to make him change so radically?"

"Oh, we just came to an agreement about how things should be handled from now on in the Simpsons household."

"You had a serious conversation like that with Homer? You have really matured, Bart!" Marge was impressed.

Your big fat ass has really matured, you MILF whore, Bart thought to himself, basking in the beautiful back view of his unknowing mother working at the stove.

"Mom?" Bart called.

"Yes, honey?" she answered sweetly.

"Do men ever tell you that you have a really nice ass?"

"Bart!" Marge was not amused. "Where did you learn to talk like that?"

"Milhouse told me to say it," Bart shrugged.

"Milhouse? I always thought he was such a well-behaved young gentleman."

"Yeah, I guess he's changed ever since his parents divorced," Bart said. "Anyway, we had a dare contest where he told me to compliment your ass for him. But to be honest, he's got a point. It's pretty clear that you do have curvier hips than most women your age. If I had to estimate, I'd wager your hip circumference is at least 38 inches."

"Bart, you shouldn't talk about women that way," Marge said, looking at her own butt as if to figure out what was so interesting about it. "My hip size is none of anyone's business."

"You're right. But don't take it the wrong way. You should be happy that you still look so good after pushing out three kids." Bart got up from his seat and walked up to the stove where his mother was cooking. Her ass looked even more incredible from up close. Without a second thought, he gave it a quick slap.

"Ouch!" Marge yelped in surprise as her enormous butt cheeks wobbled under her dress.

Yeaaah! Look at that jiggle! It's like jello in an earthquake. An ass like this was made for anal!

Marge glared at Bart.

"You're in trouble, mister," she said. "What was that for?"

"Milhouse told me to do it," Bart shrugged again.

"He did?" Marge seemed to buy the story. "Listen, Bart. I want you to stop playing with that kid. He's clearly a bad influence on you."

Bart clicked his tongue in defeat. It looked like Marge was going to be harder to convince than Lisa or Edna. He was going to have to think of something to make her drop the motherly act and accept her destined role as his number one buttslut.

"Now go sit down, young man," Marge commanded. "I'll bring you your breakfast soon. And no more touching or commenting on women's bottoms. It's very rude. I don't care what your friends tell you, you mustn't do it."

"Yes, mom," Bart sighed. If his life were a video game, Marge would probably be the last boss. He wasn't quite ready to face her yet. But once he conquered her… oh, it was gonna be sweet! He couldn't wait to turn their roles around and become the sole authority figure in the house.

I'm gonna turn you into my anal cumdumpster, no matter how long it takes. Just you wait.

As Bart got back on his seat, he noticed that Lisa had been standing at the doorway. She had her arms crossed. Bart started sweating nervously.

"Good morning, Lis," he muttered with a dry throat. The glaring girl did not respond. She picked up a banana from the fruit bowl and sat next to Bart on a spot that perfectly blocked him from staring at his mother's behind.

Yikes! She's clearly being confrontational because she caught me spanking mom. I didn't realize Lisa would be this scary when she was jealous.

Bart felt something hit the front of his seat. He looked down and saw Lisa's bare foot reaching for his crotch under the table. Bart looked up. Lisa still looked angry, so why was she doing this?

Is she telling me that I should only be looking at her and not mom?

Lisa peeled the banana while wordlessly looking at Bart. The young boy could feel his sister gently pushing her foot against his balls under the table. It felt so good.

"Ahh… Lisa," Bart moaned quietly. "I thought you said we should do stuff like this in private… ahh!"

"What stuff?" Lisa asked playfully. "We're just sitting here eating breakfast."

"R-right…"

Lisa took an unnecessarily long length of the banana in her mouth while keeping her gaze locked on Bart's eyes.

Oh my god! She's definitely imitating a fellatio!

Lisa took a good twelve inches of the banana down her throat without biting or gagging. Genius bookworm or not, how did a tiny elementary school girl learn to do that? Lisa kept the banana in her mouth and moved it back and forth while moaning quietly. Saliva dripped down on the table as she bopped her head as if an invisible hand was pushing and pulling her head in rhythm. Meanwhile, she was caressing the length of Bart's upward penis with the sole of her soft foot.

"Ahh!"

An unintentionally loud moan escaped from Bart's lips. Even if it was over his shorts, Lisa's footwork was simply incredible. She had definitely been practicing for this.

"Bart, are you okay?" Marge asked, having heard the sudden yelp. "Oh, hey Lisa. I didn't see you walk in."

"Everything's just fine," Lisa said without ever breaking eye contact with her brother. "Right, Bart?"

"Yeah… I thought I was gonna sneeze, but then it just went away," Bart said even as he was catching his breath from the pleasure.

The eggs were finally ready and Marge brought her children their plates. Lisa finished eating her banana normally, but her foot was still rubbing against Bart's crotch. Even as Marge sat down at the table opposite to them, Lisa continued her footjob.

Seriously? What happened to the shy and embarrassed Lisa from yesterday? She just saw how mad mom got when I slapped and complimented her butt. If she catches us, we're definitely screwed.

The young man felt another bump on his seat. Lisa had extended her other leg to join the first one. She used her toes skillfully to pull down his shorts. Marge was reading the newspaper, so she was blissfully unaware of the obscene act taking place under the table right next to her. Lisa had now sandwiched Bart's rock-hard penis between her soles and was pumping him with her little feet.

Seriously, Lisa? Getting a little touchy under the table is one thing, but you're trying to make me orgasm right in front of mom. Where do you expect me to cum? Mom's gonna find my semen all over the kitchen floor and she'll know what we did!

But Lisa wasn't slowing down. On the contrary, she sped up the pace to the point where her chair was rocking. Bart couldn't hold it in anymore. He grabbed Lisa's ankles and squeezed her feet together to make a tight slit. He pushed his slippery cock through the tight pussy formed by her connected soles and came like a firehose. Although he couldn't see through the table where his semen had landed, he knew for sure that there had to be a big puddle of it on the floor between where Lisa and him were sitting.

"Did you enjoy your breakfast, Bart?" Lisa asked with a cocky smile.

"Yeah, it was amazing… But we'll have to clean up after ourselves…"

"You're right, bro. I think I spilled some ranch on the floor. I guess I'll have to clean it up," Lisa announced.

"Lisa, I didn't know you liked your eggs with ranch," Marge said, lifting her eyes from the newspaper.

"I do now," Lisa said, giving Bart a knowing look.

"H-here's some paper towels," Bart offered. He felt guilty about making his sister clean up his mess, even if it was her fault for making him cum.

"No need," Lisa whispered with a wink. She got on all fours and crawled under the table.

What the hell is she doing?

Bart peeked under the table. Lisa was there with her face down and ass up licking the pool of sperm directly off the floor. The pose made her skirt roll up, revealing her panties. Even from the front, the shape of her cute butt looked so tight and fuckable. Lisa was slurping the sticky lovejuices like it was maple syrup. Bart was staring with his mouth agape.

You dirty whore! You're drinking my sperm off the kitchen floor? You really like the taste of my semen that much? Just how much of a pervert are you? But man, am I glad to have you as a sister.

After Lisa had finished licking the floor clean, she got back from under the table and stood up. She wiped her mouth with a paper towel and looking at Bart said, "thanks for the breakfast."