Author's warning: This lemon contains incest, cherry popping, along with the obvious age factor. Skip this chapter if it's not your cup of tea.
'Click,' the door had been locked tightly; leaving the two siblings alone in their modest bedroom that was furnished with a singular queen-sized bed in the center, and a dresser with a copper candelabra placed on top. Standing face forward toward the wooden door, Vivi took a moment to listen in for any other noises coming from outside their rented room to gauge how well the sound-proof insulation was; her alert eyes adjusting to the low light of the flickering wax candles that illuminated the bedroom in a gentle orange light, as she remained silent with the only thing audible being her own breathing and heartbeat.
'Other than some light thudding coming from the room above ours, I'd say that this room is otherwise sound proof… Which means I won't have to worry about trying to keep him quiet,' Vivi thought to herself, while feeling anxious as she slowly turned around to see Goblin Slayer sitting down at the edge of the mattress with a look of nervous-excitement written all over his trusting face.
'… In a perfect world, I would be trying my hardest to shield him from the perversions that this world has within it… But this is a lesson that he needs to learn from someone who won't judge him, such as I… The truth is that this world isn't perfect, and neither am I,' Vivi lamented to herself within the sanctity of her own mind, as she smiled gently back at her younger brother to ease his nerves. "… Are you ready to begin our lesson, Ren?"
Nodding his head with a smitten look of enthrallment in his anxious gaze, Goblin Slayer instinctively grabbed handfuls of fabric from the comforter he was sitting on top of as he replied by saying "Yeah… Yeah, I think I am, Vivi… W-What are you going to do first?"
Taking in a deep breath into her lungs after hearing her younger brother's curious and soft spoken question, Vivi felt her cheeks growing even warmer as she slowly made her way over to where he was seating; stopping once she was directly in front of his knees, before turning around to present the straps of her dress to him. "Before we begin, it's important to understand our anatomy, Ren… Specifically, I… I want you to undress me, and tell me what you like about my body as you take each article of clothing off," Vivi instructed in a kind and loving voice, as she scooted closer to allow Goblin Slayer easier access to the leather straps that we're keeping her beige-colored dress secured to her athletic body.
Even though he had been trying to prepare himself to step out of his comfort zone, Goblin Slayer couldn't help but to feel embarrassed and uncomfortable as he begin fumbling with the top knot of Vivi's dress, that was a part of the leather corset that was attached to the rest of her outfit. "Uh… S-Sorry, uh… I-I think I got it, it's just… Tight, is all," Goblin Slayer apologized with a soft whimper escaping his closed lips, as he finally managed to control his trembling fingers well enough to undo the first of many knots.
Being extremely patient with her brother who she was trying to groom into becoming the man he was quickly flourishing into, Vivi merely smiled as she felt him beginning to work on her second and third knot. "It's alright, Ren… Just take your time, and… And don't be afraid of this; go at your own pace," Vivi reassured comfortingly, before beginning to notice that her words were beginning to stabilize Goblin Slayer's fidgeting fingers; giving him the dexterity to finish undoing the rest of her corset's straps.
Staring directly at the pasty skin of his sister's exposed upper back, Goblin Slayer took a moment to study the black straps of Vivi's bra; taking notice of the hooks that kept it fastened around her body, while the corset and dress began to peel off of her upper body. "Okay… N-Now what?" The boy asked while anticipating what his next set of instructions would be.
"Next… Next, I want you to unhook my bra, and then help me out of my dress; you should always help cloth and uncloth your woman, whenever she and you are looking to become intimate with one another," Vivi advised, as she still wanted to ensure that her brother was chivalrous above all else, while in the bedroom. Feeling his fingers brushing up against her bare back, Vivi let out a relaxed sigh as she felt him fiddling with her bra; needing a few attempts at trying to understand how the hooks worked, before finally freeing her from her restrictive article or underwear. "Ren… What does this make you feel? Helping me out of my clothes?"
Gingerly pulling the short sleeves of her dress down to allow Vivi to free her arms out of them, Goblin Slayer couldn't help but to find himself studying every large muscle in his sister's arm; years of hard work on their farm by herself had given her a strong and toned physique, which made the muscles in her shoulder bulge as she moved her arm back down to her side. "I feel… Slightly dizzy, but not in a bad way… My face and ears are feeling warm, as is my private part… I can't help but feel the need to touch you, Vivi," Goblin Slayer confessed, while doing his best to articulate his own interpretation of what he thought lust felt like to him.
Silently giggling to herself, Vivi let out a sultry sigh as she slowly turned around once the upper part of her dress was hanging from her waist; her black bra falling onto the floor beside where they had sat their footwear, as she watched Goblin Slayer's eyes widen the moment her medium-sized breasts were out only less than a foot away from where his bright-red face was. "Hmmhmm~! What you're feeling right now is called "arousal"; it's what happens when you see someone or something that triggers your body to want to get all touchy-feely with… Tell me, Ren… Do my breasts also make you feel "aroused"~?" Vivi asked seductively with her heart fluttering for her younger brother, as she reached up to softly shake her c-cup sized tits for him.
Feeling his trousers tightening as he watched the mesmerizing mounds bounce up-and-down before him, Goblin Slayer's legs shifted on the edge of the mattress as swallowed back the lump in his throat once more. "Y-Yeah, I… I think so… They're very, uh… Round, and… Nice to look at," the hormonal boy muttered in response to his older sister's inquiry, as he began eyeing her erected little pink nipples, before glancing down momentarily to take a gander at his visible six-pack; another sign of just the kind of hard-labor his sister was used to doing.
"Oh… And… And what if I were to tell you that they're even nicer to grab a hold of~?" Vivi said in a soft voice; her eyes lighting up with excitement and the corners of her pleased lips tightening, as she let go of her own boobs to reach forward to grab a hold of her brother's hands.
Remembering the way he felt intrigued about the buxom and tall nun who had interrupted him and his sister from wrestling a little too close to one another, Goblin Slayer wondered to himself as to why he felt so drawn to Vivi's soft and sizeable bossoms; a shaky breath of excitement escaping his throat, as his older sister lead his hands to where her hardened nipples were.
Feeling his older sister's nipples brushing up against his palms, Goblin Slayer felt his heart skipping a beat as he heard Vivi letting out a muffled moan of pleasure from her closed smile. "Does… Does this feel good to you?" Goblin Slayer asked with baited breath, as he began to grow bold enough to squeeze his fingers down on his older sister's plump breasts; his erected cock throbbing inside of his trousers, as he fondled Vivi with his curious grasping hands. "Does this… Arouse you, as well?"
Closing her eyelids softly, Vivi arched her back while biting down on her luscious bottom lip; nodding to her younger brother, as her submissive nature began to unravel itself to Goblin Slayer. "Mmmph~! Y-Yeah, Ren~…! Ooh, mmmhhh…! C-Could you… C-Could you suck on one of them for me, please…? I… I've always wondered what it would feel like to have someone else do it, other than myself…" Vivi admitted, after having practically begged for her younger brother to fulfill one of her many sexual fantasies for her.
Not wanting to disappoint his gorgeous older sister— whose athletic build and perky breasts were both doing wonders for his developing libido— Goblin Slayer leaned forward to bury his face in between her gorgeous cleavage; an urge that lead to him smothering his face into her left boob, as he made his way toward her rock-hard nipple. 'There's some sweat on her skin, and yet… And yet it doesn't make me feel grossed out; I sort of actually kind of like it,' Goblin Slayer lamented, as an idea quickly developed in his excited mind; leading to him to stick his tongue out, so that he could slowly lick his wet oral muscle from the bottom of Vivi's areola, and up until his lips were wrapping around her entire pink nipple.
Whipping her head back and letting out a gasp of pleasure as she felt Goblin Slayer's teeth pressing down gently against the bottom and top of her tit, Vivi let out an elongated sigh as she slowly lowered her face back from the direction of the ceiling; burying her nose into the top of her brother's head full of light-brown hair, as she reached down to begin pulling the rest of her dress down her toned hips. "Ooooh, gods…~! Mmm, good boy, Ren; s-suck on my tit, j-just like that, mmphhh~…!" Vivi cooed out in between soft pants of hot breath, as she wiggle her legs out of the dress before letting the rest of her outfit fall to the wooden floats boards below.
Feeling his older sister's strong arms wrapping themselves around his body to not only embrace him, but to also stuff his warm drool-filled mouth with more of her medium-sized boob, Goblin Slayer let out a throaty whimper mixed in with a moan as he began to feel Vivi kiss the top of his head, as though it were his lips. With the only garment left of his pale-skinned and athletic sister being just her wet-black panties, Goblin Slayer took the liberty to reach out with his freed hands to begin exploring his older sister's toned body.
Hearing muffled explanations of what the name of the body part he was touching from his fully aroused sister, Goblin Slayer started his journey of Vivi's strong and slender body by rubbing his hands down along the sides of her abdomen; stopping at her love handles to squeeze his fingers down on them, and felt his cock twitch excitingly the moment he heard his submissive sister letting out an involuntary high-pitch scream of euphoric pleasure.
Fueled by his lust that was beginning to grow more-and-more addictive to him as he flicked his tongue against his sister's erected nipple inside of his mouth, Goblin Slayer's hands lowered themselves down even more past Vivi's hips; caressing her thighs while hearing her muffled moans grow louder, before reaching around as far as his arms could extend. Remembering the longing he felt when he saw his sister's shapely mounds bouncing up-and-down while he was being dragged right behind her in the marketplace, Goblin Slayer pulled Vivi closer to him by grabbing handfuls of her muscular ass; leading the submissive teenager to follow his touch.
Lifting her mouth off of the top of his head, Vivi climbed onto the bed; lowering her younger brother onto the mattress, so that he was directly underneath her, while she hovered over his smaller body. "R-Ren…! I-I want you to wrestle with me, just like how we did earlier…! E-Except I want you to face me this time… T-Touch me, make me feel good, baby brother~…!" Vivi begged with a sensual tone in her usually kind and soft spoken voice, as she continued to hold herself over Goblin Slayer, who was still squeezing his fingers and thumbs into both of her toned asscheeks.
'My private part is starting to get the inside of my underwear wet… Wonder if that's normal,' Goblin Slayer thought to himself, before beginning to think of a way to pleasure his older sister the way she wanted him to. 'She said to wrestle her like earlier, but just to be facing her this time… Maybe if I lower her down on me, if that'll do something…' Goblin Slayer wondered, as he reached around her thighs to grab a hold of Vivi's black panties, pulling down on them to bring her hips down on his, while accidentally slipping them down her strong-muscular legs.
Letting out a surprised gasp as an excited opened-mouth smile formed across her pink lips, Vivi waited with baited breath to see where her younger brother was going with his exploration of her toned body, as she felt her panties sliding down her thighs and falling down all the way to her knees. "Mmmm~…! Q-Quick learner, aren't you…?" Vivi mused proudly, as she decided to help her younger brother by taking her left leg out of her panties, allowing her to spread her thighs wider for him, before eagerly pressing the wet outer lips of her womanhood down on his bulge.
Tensing up with his eyes once again widening, Goblin Slayer's involuntary cry of pleasure was muffled by his older sister's tit stuffed into his gaping mouth. 'This feeling…! It's… It's amazing! Oh, wow…! Whatever's she doing right now, it's freaking awesome!' Goblin Slayer thought euphorically to himself, while beginning to mimic his older sister by grinding his hips against hers; as she wiggled her dripping-wet pussy around his covered erection, as to get in between her tender vaginal lips.
Biting down on her lower lip harder, Vivi arched her back involuntarily as she felt the precum-soaked fabric of her younger brother's large bulge pressing up against her enlarged clitoris; the friction from the moist texture stimulating her, as she began to bounce her hips up-and-down on Goblin Slayer's pelvis. "Ahhh, oohhh~! D-Don't forget to give my other nipple some attention too, little brother; g-gwuah~! She's getting jealous of you "kissing" her "sister", mmmph~!" Vivi scolded in a seductively submissive voice, as her fingers dug deep into the top comforter sheet of the bed that was beginning to squeak loudly underneath them.
Abiding his older sister's request, Goblin Slayer turned his head to the side while getting his erection ridden by her; panting and moaning quietly to himself, as he plopped the saliva-covered nipple out of his mouth. Taking a moment to stare at the large hickey he had left on her bouncing left tit, Goblin Slayer reached down from her strong lowered mounds to grab a hold of her jiggling right breast; opening his jaw, as he filled his mouth with her previously neglected nipple.
Edging towards the feeling of being overstimulated, Vivi's eyes widened as she let out a loud gasp of air; her brown eyes rolling into the back of her sockets, as she felt her younger brother greedily begin to succle on her other sensitive nipple, all while the she felt his hands reaching back up to grab a hold of her lower cheeks. "J-Just like that Ren, gwuaahh~! Nnnghhh, gods…~! Make love to your sister's cunny; use her like the whore that she is- ahhhh~!" Vivi moaned out without the mental concentration to filter out her profanity; her sex-driven mind filled with the memories of all the erotic novels that she had read over at her friends' house that helped kickstart her taboo cravings.
While his older sister was content with rubbing her sensitive clit against his covered erection, Goblin Slayer was discovering that the clothes he was still wearing were getting in the way of him being able to share the same amount of pleasure that his sister was having; an observation he made when Vivi had accidentally pulled his trousers down past his thighs, while having been bouncing her hips up-and-down against his.
'My underwear… If they take them off, it should make me feel better down there; maybe it'll feel just as good as it did when she was rubbing her foot against it earlier?' Goblin Slayer thought to himself, while completely oblivious to the risks that having unprotected sex could lead to. Horny and craving to expose his cock out for his sister to make feel good, Goblin Slayer momentarily let go of the sex-crazed teenager's plump-muscular asscheeks to reach down underneath her toned-sweaty body, so as to shimmy his underwear and the rest of his trousers down past his thighs.
Aggressively thrusting her hips against her younger brother's, Vivi's ears were filled with the springs of the mattress squeaking underneath their combined cries of pleasure; her mind was clouded by lust, to the point that she didn't even think twice when all of a sudden the cock she had been grinding her clit against slipped upwards toward the entrance of her virgin pussy. An involuntary scream of shock and pain filled the bedroom from Vivi, as her teary eyes grew wide the moment she had unknowingly penetrated her virgin pussy with all eight inches of her unusually endowed little brother; an excruciating sensation mixed in with raw pleasure radiated up her groin, from her broken hymen.
Clenching her jaw close while tightening her grasp on the handfuls of comforter that she had been holding onto, Vivi felt her heart drop in her chest the moment she felt Goblin Slayer immediately halting his thrusts. 'Shit… I didn't think this through! I forgot how all those authors wrote in their eroticas about how painful it was for the main character to lose her virginity! Damn it, I should have known better; especially with Ren!' Vivi scolded herself, while resisting the urge to give into how much pain she was in, as she felt trickles of her blood seeping out of her deflowered womanhood, and onto her oblivious brother's cock that was still buried balls-deep inside of her.
"V-Vivi?! A-Are you okay?! Did… D-Did I hurt you…?!" Goblin Slayer finally asked, after using the same technique from earlier to slide his older sister's nipple and breast from his mouth.
Refusing to allow her broken hymen to traumatize her younger brother— especially since he was in a vulnerable state, and was completely trusting of her that she knew what she was doing— Vivi let out a shaky breath as she forced herself for push past the intense soreness she felt inside of her bleeding vagina. "Ahhh, uhh…?! N-No! No, Ren; quite the opposite, actually! That was a scream of pleasure! A-And I-I meant what I said earlier: I-I want you to grab me by my hips or buttcheeks, and thrust your hips against mine while your penis is inside me," Vivi instructed after consoling her brother that she was fine with him fucking her deflowered pussy.
Bracing herself for more pain, Vivi clenched her eyelids shut and kept her jaw shut tightly as she lowered her body down further onto Goblin Slayer; smothering him between her sweaty cleavage, and letting out a throaty whine as she felt his hands blindly reach around her thighs to grab back onto her bare asscheeks. "C-Come on baby brother… Give that cock to your naughty older sister~…!" Vivi whispered out in a sultry voice; her love for her brother filling her with the strength to go on, as she reached around his upper body to wrap her muscular arms around his torso.
Inhaling humid breaths of air that filled his nostrils with his sister's intoxicating aroma, the skin-to-skin contact he felt with Vivi as his cheeks were smushed together by her perky titties were all that Goblin Slayer needed to be motivated once again to continue making love to his beloved older sister; that; and the way her toned ass reverberated as he groped and smack her bottom cheeks were also what reignited the lust he felt previous in his loins. Sticking his tongue out, Goblin Slayer licked up between his sister's breasts as he raised his knees up while Vivi spread her thighs even more to begin straddling his hips at a better angle; the unconditional love she had for him fueled her resolve, as she buried her face into the top of his thick head of hair.
Bucking his hips against hers, Goblin Slayer immediately knew that he absolutely was addicted to the way her warm-hot pussy felt around his member, as he pumped his throbbing eight-inch member in-and-out of her deflowered teenage cunny. Hearing a guttural whimper escaping from his sister's throat as she tightened her arms around his body, Goblin Slayer was beginning to pant humid breaths of Vivi's boob sweat as he began to carefully bite down on both sides of her inner cleavage; leaving trails of hickies and bite marks all over her pale skin, as he began thrusting his throbbing cock faster and harder inside of her aching pussy.
Having prepared herself to endure nothing but discomfort until her brother finished inside of her, Vivi was finding herself beginning to enjoy getting her teenage cunt fucked silly by Goblin Slayer, as the pain from her broken hymen began to transform back into mind-breaking pleasure. 'The pain's still there, but it's strange… The way his cock keeps rubbing against my inner walls… It reminds me of when I massage a bruise; it stings, but it's soothing in all the best ways,' Vivi lamented to herself, while beginning to drool shamelessly all over the top of her younger brother's hair; the springs inside the mattress beginning to once again squeak loudly, as she raised her hips up to bounce up-and-down on Goblin Slayer's twitching cock while he thrusted his member inside of her.
Achieving synchronization in the way they were fucking one another like rabbits, the room became flooded with humidity and an cacophony made up of their combined moans and grunts; both siblings beginning to work up a new layer of sweat over their bodies. Relishing the way her little brother's balls would slap against her vaginal lips each time she lowered herself down on his thrusting cock, Vivi had practically given up on trying to make her living fantasy seem like a lesson in sex-education, and instead was losing herself to the sexual pleasure that she and her brother were sharing with one another.
Clouded by sexual stimulation, Vivi's diminishing judgment brought forth her most repressed thoughts; as each time she felt the tip of Goblin Slayer's large cock ramming against her G-spot, Vivi found it harder to not think of her little brother as her new boyfriend. "Ooooooh, g-good job, baby…~! Oh g-gods, Ren~! Don't stop, d-don't you dare stop, nghhwuah~!" Vivi cooed out with her vision going crossed-eyed, as she felt herself reaching closer-and-closer to her release.
Hearing wet 'plamph, blamph' noises coming from his sister pouring-wet pussy, the tightness Goblin Slayer felt all around his eight-inch cock as Vivi's deflowered walls began to contract around his girth sent the boy spiraling into a world of pleasure; his nose and lungs filled with his older sister's intoxicating sweaty-musk, as he began to feel an all new feeling forming inside him. Beginning to grow light-headed in between his older sister's jiggling breasts that are covered in his love-bites, Goblin Slayer knew something was coming as he felt Vivi's arms and thighs crushing his body, with how tightly she was embracing him.
"Ooohh, ohhh gods~! B-Baby, baby I-ahhh~! I-I'm gonna cum, I'm gonna-nghhhh-GWWUAHH~! AHHHH, AHHHH, NNYWAHHH~!" Vivi's high-pitched voice moaned out incoherently with her tongue flopped out past her bottom lip, before beginning to scream with a mind-altering euphoria as her contracted vaginal walls tightened even more around her brother's twitching cock; holding his member in place, as they exchanged bodily fluids within the sanctity of her well-fucked pussy.
Stifling in grunts mixed in with moans into his sister's perspiring breasts, Goblin Slayer's fingers began to leave scratch marks down the sides of Vivi's toned ass cheeks as the boy achieved his very very orgasm; cumming deep inside his own older sister, shooting his white-hot ropey loads past her cervix, and coating the inside of her fertile womb with his seed, as he felt her hot-watery vaginal fluids pouring down his member and trickling down his hairless balls. Leaving a large wet spot of their combined juices on the comforter beneath where his bottom was, Goblin Slayer remained underneath Vivi's hot-warm body, gasping for air just like she was, as the two of them refused to let go of one another.
With how close their bodies were pressed up against one another, the two siblings were eventually able to match one another's breathing without even putting any thought into it, and soon were coherent enough to begin coming down from their intense session of what was supposed to be educational "experimentation". Despite having her wits back, the feelings of her longing to be a wife and a sister to Goblin Slayer left Vivi feeling submissive to her well-endowed brother. Instead of letting him lay down on her, since she was both taller and weighed more than him, Vivi cuddled up against his side; resting the side of her face against his warm chest, while still holding him close to her body.
With about twenty minutes left to spare before they both needed to begin making themselves look presentable to partake in the dinner being held by the church, Vivi decided to actually finish what she originally set out to do when she first brought Goblin Slayer up to their rented room. Going over in detail about what exactly happened within their bodies throughout the duration of their love making, Vivi made sure to take advantage of the fact that they were both still naked to point at both their bodies to give Goblin Slayer a visualization of which body part was called what, and what sexual function it served.
When going over with him how babies were made, Vivi was asked by Goblin Slayer about whether or not he had impregnated her or not, to which his older sister replied that it didn't matter, since she was going to purchase one of the "emergency contraceptive" potions that she had seen for sale at the Mortar and Pestle; reassuring her nervous brother that she more than likely wouldn't get pregnant by him.
Feeling more than satisfied with his experience losing his virginity from the same teenager whose virginity he had taken in turn, Goblin Slayer and Vivi made pillow talk about what they both taught Mother Mary would want with him in private; his older sister taking the opportunity to half-jokingly assure her younger brother that he should be prepared for whatever sexual favor that the nun would ask of him.
