An obsession with

"You know, back before you became my step sister for real, I dreamt you started out really pissed off that your dad had married my mom," I said.

"Well, I was, for some reason," she confessed. "But I'm really happy now!"

"Well, you've changed a lot," I said. "It's just like in my dream. You were mad at your dad for making you move in here and making you call me your brother. So you decided you'd get back at him by seducing me and arranging to have him walk in on us screwing. But a funny thing happened: the guys you'd been with up until then had been selfish lovers that didn't know what they were doing. When you came on to me I went down on you and literally blew your mind. You had never achieved orgasm before. And once you had, you wanted to coming again. A lot."

Mom cum Amy giggled.

"You don't think I'm greedy, do you little brother?" She asked. "I mean, you seem to enjoy HAVING a sister."

"Oh, I do, Amy," I conceded, looking unabashedly at her crotch. "I do! Though you seem to be just crazy for it. Full on nympho. Tell me if I'm wrong, but in my dream, it seemed like you somehow made this connection between fucking your 'brother' and sexual release. You started reading brother/sister **** porn stories online and became even more obsessed. Secretly fucking me behind our parents back became this addictive rush you just can't get enough of. At least it was like that in my dream. Am I wrong?"

"The only thing wrong, brother dear, is that you seem to be ignoring your lovely sister's lovely cunt!" She said, dropping her shorts to the floor and kicking them into a corner of the kitchen. "Did you even notice I shaved?"