Did you just impregnate your sister-in-law?

You chat a little bit more with Suzy before ending the call. Your head is still spinning from everything that just happened. Could you have really just impregnated your sister-in-law? Diane looks up at you with an extremely satisfied expression on her face. Your shrinking cock is still plugging up her vagina, preventing any of your semen from leaking out.

"Making sure none of your little soldiers go AWOL?" she asks you playfully. "Don't worry," she giggles, "I won't spill a drop."

You let your cock slip out and move down to take a look. You can see your milky white cum peeking through her wet pink folds, but none of it is dripping out. The site of her cunt filled to the brim with your sperm is starting to make you hard again.

"Are you on any sort of birth control?" you ask her.

She shakes her head. "Nope. Also, I'm ovulating. You, Mr. Jones, may very likely have just knocked me up," she says with a grin and a cocked eyebrow.

An electric thrill runs through your body. You just fucked the shit out of your wife's sister, and now she is probably going to be carrying your baby inside her for the next nine months. A mixture of fear and disbelief rises within you, but they give way to intense excitement and arousal. Your mind races and your hard-on is at full mast despite your recent climax.

Diane calls out, "Hey, Dave, up here!" You realize that you've been staring into her cream-filled cunt for probably too long, and she's trying to get your attention. You move out from between her legs and lay down next to her on the bed. She rolls over on her side, props her head up with one hand, and traces her fingers across your chest with the other hand.

"Believe it or not, Dave, I want this. I never let Steve impregnate me, but I didn't realize how badly I wanted to have a child until after we got divorced. Well, I'm not getting any younger, and I certainly don't want to get married again anytime soon, so I started thinking about just letting someone knock me up. Those thoughts turned to fantasies, and many times those fantasies would be about you." She blushes at that admission. "Besides, the idea of having your baby behind Suzy's back is incredibly naughty and makes me super wet and horny whenever I think about it. She never has to know its yours, and you can be as involved or uninvolved as you like. I have decent job and got a really nice settlement from Steve, so I promise I won't ask you for a dime."

This helps settle your fears, though you're still trying to wrap your head around the fact that Diane came here actually wanting to get pregnant. You reach over to lightly stroke her hair. Her eyes travel down to your raging hard-on, and she looks back up at you and giggles. "Looks like I'm not the only one here who gets off on impregnation fantasies." She sits up and swings her leg over your waist to straddle you. The tip of your cock rubs up between her ass cheeks as she leans forward and hovers over you, bracing her arms on either side of you. Her hair falls around your face, blocking out the view of everything else besides her eyes and her sexy grin.

"So Dave, do you want to make extra sure I get pregnant? I could use another baby batter injection."