In bed with Kate

That night when you you climbed into bed with your wife, all you could think about was the baby now growing in your sister-in-law's womb. Although you knew it was wrong, the more you thought about it, the hornier you got.

Kate was laying on her side with her back to you. The hem of her gown had crept up just high enough that you could see her ass cheeks. You slide over next to her, gently pressing your hardon against her.

"Someone's happy to see me," she said, groggily.

"Always," you said, but all you could think of was Amy laying naked on the other side of the wall waiting on your brother, your baby growing inside her.

"Can you be quick?"

"I think so."

Kate parted her legs just enough to allow your cock to slide into her pussy from behind as you spooned.

"Mmmmm," she moaned.

You slid slowly in and out of your wife, still picturing Amy.

"God I want to put another baby in you," you moaned.

"I dont...."

Before ahe could finish you were cumming inside of her. She just giggled.

"Well, I guess we'll roll the dice," she said as she drifted off to sleep.

Now you just hope Amy hold up her end of the deal.