We went long

We went long into the night, fucking each other in just about every permutation and position any of us could imagine. Molly was a very nervous little pussy-licker at first, but after a few tips and letting her watch from up close as I showed her how it was done, Mickie assured her she was doing great. I came in them two times each, plus once more after a shared blow job when they took it all over their pretty little faces and tits, before we climbed into the shower together to wash up and get ready for bed. Mickie pulled the covering from her window so we'd be able to see a little after we turned out the light, and she, as the architect of our little endeavor, got to enjoy our first night as a throuple being squished in the middle. I cuddled up tight behind her, she and Molly facing each other and softly making out, while I draped my arm over top of them both, holding us all close by my grip on my sister's cute little ass.

"I do have just one little request," Mickie purred. "Obviously, with you two living in the same house together until we're all ready to move out and get a place of our own, you're going to be having a lot of sex without me. Which is totally cool, that's what I want! I never would have suggested this in the first place if I wasn't totally okay with that! I just... I'd really like it if you make sure you tell me all about it, after you do."

"You want that, do you?" I grinned wickedly, gently nibbling on her earlobe the way she loved. "You want to hear about me fucking my sexy little baby sister? Filling her tight, wet little pussy with my hot, incestuous cum?"

"So much!" she breathed, trembling in our arms. "Almost as much as I love watching it in person! Honestly... I never would have believed it was possible, before tonight, but I think I might actually enjoy watching you fucking her even more than I do getting fucked myself!"

We all laughed, and I squeezed them tighter together under my arm. I had to be crazy... but fuck it! Molly clearly knew what she wanted. And God help me, but I wanted it now, too! We'd have to make sure no one else ever found out, but honestly, that wouldn't even be all that hard; the two of them had been best friends for ages, nobody would even look twice when the three of us started hanging out more. Hell, Mom and Dad would probably approve of me making the effort to include her more! And having my sister's tight, wet little pussy at my beck and call any time I wanted it, right there in my own house... fuck me, this was going to be good!

We all traded last kisses good-night, and settled exhausted and happy down to sleep. I wondered... I knew Mickie wanted kids, after I finished university we'd gotten ourselves established. Molly had always wanted them, too. Would that change, now that the guy she'd be having them with was her own brother? I hoped not. Thinking of filling my sister's tight, sweet little pussy, and how sexy she'd look with her skinny little belly swelling with my child... I'd give her as many as she wanted! That's what I was thinking of, as I faded away to sleep; a whole passel of dark and red-headed little rug rats running around underfoot, my two beautiful, perfect girls snuggling up against my sides under my arms as we watched them play. A perfect dream... and an even better reality!