Become Adrianna’s partner, make some selfish changes

“Y-yeah, it’s mine,” you say slowly, not exactly expecting such enthusiasm. You ignore the strange looks you’re getting from your parents and Uncle Joey, opting to focus on leaving a good impression on Adrianna instead.

“I do think I can feel something... quite large,” Adrianna says softly as your cock twitches against her stomach, and she pushes her breasts harder against your chest. “Did I do this, Michael?”

“Er, yeah,” you answer calmly, glancing at Rose cautiously before groping Adrianna’s large tits with both hands. “Can't help it. You look amazing, and so do your breasts.”

“Really?”

“You look absolutely gorgeous,” you insist, squeezing the soft flesh gently.

Adrianna’s lips twitch, and you notice a hint of humour in her eyes. “Keep going. I love compliments.”

“...You look sexy, Auntie,” you admit, letting your eyes fall to her breasts as you grope them without reservation. “I want to play with these things all day.”

“Good answer,” Adrianna laughs softly, giving you a look of approval. "I’ve been having a hard time finding ways to relieve my stress... because of my pregnancy. Know what I mean?"

You feel her soft body lean against yours and your breath is stolen when she gently pecks your nose, and you smell the faint scent of berries in her hair. Adrianna’s smile turns almost predatory as she draws circles around your nipple.

“I’ve been looking for a man who is... physically gifted to keep me company until I’m due,” she continues, sliding her hand down your stomach and resting it just above the tent in your shorts. “And I think I've found him, yes?"

You grin as she kisses your cheek next.

“If you give me what I want,” she continues in a sultry tone. “I think we can make an arrangement that will make the both of us very happy.”

With surprise plastered all over her face, Aunt Rose meets Adrianna’s eye. She looks away almost immediately, blushing as she tries to blend in with the kitchen table.

“I’d be more than willing to help,” you reply thickly, and swallow the pooling saliva in your mouth. "I mean, any guy’d be crazy to turn you down."

“I’ll let Joey know,” she replies with a bright smile, looking very pleased by your response. Her hand finally lowers further, and her fingers wrap around your cock from over your shorts.

___

“Why do you have such a goofy smile on your face?”

“No reason,” you reply, trying your best to seem indifferent as you lounge on the couch. You were still reminiscing about the feeling of Adrianna's soft, heavy tit in your hand and fantasising about tonight.

“...Anyway, I didn't expect Tyler to be this clingy. I understand he's at that age, but he's almost too handsy,” Robin starts to complain as she sits down beside you. “There are other women around, aren't there? His mother had to literally wrench him off my tits.”

“Just tell him to stop bothering you if you don’t like it,” you reply neutrally, swallowing the bitter taste of jealousy in your mouth. No wonder you hadn’t seen Tyler around; he was busy taking advantage of the rule you’d written, fondling your sister as he pleased.

“But that’s sort of mean, isn’t it,” Robin frowns helplessly. “It’s not like he’s doing something wrong... I just wish he was gentler. A little considerate about how women feel.”

“Is that how you feel when I touch you?”

“Hm? No.” Robin looks puzzled, perhaps picking up the steely tone of your voice. “You’re much gentler, and you... you know it doesn't feel bad with you.”

There's a sudden tinge of pink on your sister's face which you pick up on.

“Hold on. Gimme a sec.”

Inspired by her words (and motivated by your own jealousy), you decide to think hard about how you can make the rule regarding how ‘boys will be boys’ a little less abusable, but still interesting.

Carefully, you add underneath your rule:

Touching a particular woman for around two minutes in a day is the maximum time that is usually excused. Remaining in contact for more than two minutes is considered overly affectionate behaviour, and is only acceptable if the woman is a current lover or sexual partner of the man, or if she consents to the activity.

“...Come here.” Eager to test your rule out, you motion for Robin to sit on your lap.

“Really?” Robin scoffs in disbelief and raises her eyebrows, but scoots closer anyway and lifts her round hips onto your lap. "Adrianna isn't enough for you?"

You hold back a moan as Robin's soft ass presses against your erection as she tries to make herself comfortable.

“You need to stop holding that against me. You know I can’t help it,” you counter, slipping one hand into her pants and groping her breasts with the other. “I have to deal with you and Mom being all sexy all the time back home... and now there's more women showing their bodies off. It's driving me nuts.”

“So it’s our fault now,” she snorts, but you can tell she's pleased. She even takes the initiative to unbutton her pants, giving your hand more room to explore between her thighs. “You made a beeline towards her the second you spo- ooh sh-shit...”

Robin’s words break into soft moans as your fingers brush across her slit and you start to tease her, to your surprise, already wet labia.

“For all your complaints about Tyler, you seem to be quite wet down here,” you mutter darkly into her ear. “Maybe you've been having more fun than you’re letting on?”

“No, I told you already,” Robin protests as you pull on nipple and kiss her shoulder. “I’ve been like this since the car ride... y-you’ve just become really good at this...”

Indeed, you do seem to know exactly where to put your hands to drive Robin crazy. Like it’s instinct, you tease the area around her vagina and brush across the nape of her neck with your lips, and by the sounds she’s making, Robin’s clearly happy with your work.

“You’re always act so possessive,” Robin adds, gyrating her hips against your hands. “I can’t help who touches me, you know.”

“I know, Robin,” you whisper into her ear. "And I can't help feeling how I do, either."

“I can tell,” Robin sighs sympathetically, covering your hand on her breast with her own and teasing her free nipple herself. “It’ll get better once you're older-”

“You've been my sister forever. I've thought you were beautiful and wonderful ever since I understood what made girls different,” you cut her off, and she shudders as you push your fingers into her pussy. “My feelings... they aren't because of some phase I'm in.”

“You're pulling this bullshit again?” Robin hisses angrily as she wriggles around on your lap. "You know we can't keep doing this... after you grow past a certain age."

“Me? You're the one who's lying to yourself." You hook your fingers inside her and press down on her clit gently with your thumb. “You're wet and you're not running away. We both want this, Robin."

“Stop." Robin bites down on her plump lower lip as she gazes heatedly at you. Her expression wavers under your unflinching gaze, and she quickly turns and relaxes against your chest and moans softly as you continue to work her pussy with your fingers. “At least... save it for when our relatives aren't in the next fucking room.”

“I love you, Robin,” you persist, pinching her nipple between the knuckles of your index and middle finger to distract her. The sensation makes her flinch and then she lets out a squeal as your fingers in her cunt hook and push against a rough spot on her wet walls. You kiss her neck and whisper into her ear. “I love you. I love you. I love you."

“Please, stop,” Robin gasps, moving her hips in tandem with your fingers. She bites her lips and looks up at you, the blush on her angry face making her look more attractive than ever. "You're- oh you're such a pain... you're such a pain."

But she doesn't resist as you push her onto her back, and her glaring eyes grow hooded as you crawl on top of her. Separated by two layers of cloth, your pelvises grind against each other.

Robin's arms lock around your neck, and you lean down to devour your sister's mouth. She squeals and shudders as you rub your erection against her crotch, all the while battling against your demanding tongue.