You fuck Diane's pussy

You angle your cock towards Diane's hot and slippery cunt and thrust it inside. Her inner folds melt around your shaft like warm butter. Her eyes close halfway and her lips part, letting out only silence at first, but in the next second she lets out a deep and pleasurable moan. You slowly sink your cock in deeper. The feeling of her inner walls contracting around your penis feels like heaven. You lock eyes with your sister-in-law as you slowly pull your cock back a few inches before sinking it deeply into her again. Her chest heaves with every thrust, and you can feel her erect nipples rub against your chest as you gradually build up a good fucking rhythm.

"Oh fuck... yes... yes... fuck me... yes... harder... Harder!" Diane urges you on with every thrust. She wraps her legs around the back of your thighs and digs her heels onto the base of your ass, pulling you into her more tightly. "Oh God... your cock... it's perfect... it's amazing!... right there... yes... there... oh!... fuck!... Ohhh FUUUUCK!" she screams as she hits her first orgasm of the night. Her pussy contracts around you and nearly squeezes you out of her as she cums. This only drives you to fuck her harder and deeper, fighting to keep your cock firmly inside her.

Now it's your turn to moan. The way she's bucking her hips against your crotch is almost too much. There is no way you are going to last much longer at this pace, but Diane's body is screaming for you to fuck her hard and fast. Her eyes fly wide open. "Oh God! I'm going to cum again! Oh... oh!... Fuck!... Cum!... Cum with me Dave!... Yes... now!... FUCKING CUM NOW!"

Feeling her body writhe in ecstasy while she screams for you too cum sends you over the edge. There's no way you can hold back now. You pump her pussy for all you're worth until you feel your balls tighten. "Oh fuck! I'm going to cum!" you warn her.

"Then do it!" She tells you breathlessly. An instant later your cock erupts triumphantly. Waves of immense pleasure course through your body as you fill your sister-in-law's pussy with hot loads of cum. She rakes her fingernails across your back as her body is seized by yet another intense climax. You can't believe how hard and how long you're cumming as you feel your penis shoot pulse after pulse of semen deep into Diane's womb.

Gradually, your climax passes. You look down into Diane's smiling face. Both of you are breathing hard and covered in sweat. You roll over onto your back and lie next to her, slipping your softening cock out of her pussy.

"That was amazing!" she says breathlessly.

"Mmmm Hmmm," you agree. You're orgasm was so intense you're barely capable of intelligent speech.

You both lay there in silence for a while, recovering your wits. Diane rolls toward you and lays her head on your chest. You wrap your arm around her shoulders. Soon both of you start drifting into semi-consciousness.

"So," Diane says after a long while, rousing you from a hazy half-sleep. "This was great, and it was exactly what I needed. I can't help but wonder what this means for us though. Are we friends with benefits now? Are we lovers? Is this just a one-night stand and we go back to pretending it never happened like we did after your wedding?"

She lifts her head from your chest and looks into your eyes questioningly. You have to think very carefully about how you answer this one.

Was tonight a one-night-stand so you can get your lustful thoughts of your sister-in-law out of your system and make everything go back to normal?

Do you really want to pursue sex regularly with your wife's sister knowing how risky that would be?

Is it just sex you want from Diane, or do want something deeper?