Part I

Your Younger Sister Serena was furious. Arms crossed, tits pushed up in that tight office blouse, ass practically testing the limits of her skirt. She looked like every man’s wet dream, and that was exactly the problem.

Every guy at her job wanted to fuck her. They didn’t care if she said no. It was pissing her off.

She had a solution. A fake boyfriend. Someone to make them back the f-ck off.

And that someone was you.

The moment you agreed, she stunned you, launching herself at you, kissing your face all over, pressing her soft body against you, giggling like a little girl.

Serena : "You’re the best, the absolute fucking best! Ugh, I love you! You better play your role right,"

she smirked, eyes gleaming.

Part II

It was instant. The second you walked in with Serena clinging to your arm, the air changed.

Eyes widened. Mouths of the Men in the room dropped.

"No f-cking way."

"That lucky bastard gets to f-ck her?"

"I bet she rides him every night, those huge ti-s bouncing in his face while she moans like a f-cking wh-re."

"She probably wakes him up with a blo-job every morning, drooling all over his c-ck like a needy little sl-t."

"You think she lets him c-m inside? Of course she does, he's so lucky."

She smirked at them, eyes gleaming with victory. They looked away, muttering to themselves

Part III

The yacht was private. Just you and her. The second the door shut, Serena kicked off her heels, flopping onto the bed, laughing her ass off.

Serena : "Oh my f-cking god, did you hear them?! They were f-cking SEETHING!"

She rolled onto her back, legs spread, hands pulling at the zipper of her dress. The fabric slipped down, revealing bare skin, soft curves, those massive ti-s barely held in by a thin lace bra. She stretched, arching her back, a soft moan slipping out as she tossed the dress aside.

She wasn’t even trying to cover herself.

Serena : "I owe you one."

The way she said it—low, slow, like a promise—made it clear.