At first, I was just focusing on playing a bit with her rosebud, but then I started getting into it and sticking my tongue further and further in.
“Oh my God, I can’t believe how good that feels. I want to feel your cock against my asshole!”
I raised my torso up and started rubbing the tip of my cock around her asshole, first in a wider circle, and then moving in. Then I started rubbing my cock up and down over her rosebud, and felt my cock wanting to make its way in.
“Yes, yes! I love it! Start sticking it in!”
I started pushing my head of my cock gently against her asshole, and felt her pushing back against me. The lube had made everything wonderfully smooth and slippery, and I found the head of my cock starting to slide in with almost no effort. When I looked down, I saw the entire head of my cock was already in her asshole. Seeing my cock starting to disappear into her ass that way was one of the sexiest things I could imagine.
She was still pushing back against me, and my cock kept slipping further and further in. I was about halfway in by now, and began moving my cock slowly in and out to make it easier to make progress.
“Oh my God, you feel so big! Your cock feels huge in my ass! Keep going, I love it! I want you in my ass all the way up to your balls!”
I loved watching my cock going in and out of her ass. And very quickly I was all the way inside, with my balls bumping up against her. “Your ass feels amazing,” I said. “You feel so tight and sexy and beautiful. And kinky too. Do you like having your brother’s dick all the way in your ass? Do you like having him fuck you in the ass?”
“I love it, I love that you have your dick all the way in your sister’s asshole! I love how kinky this all is! I want my perverted brother to fuck my ass like crazy! I love how big you feel! I love how tight everything feels! I want to feel you shooting all your hot come in your sister’s tight ass!”
I was just watching my dick going in and out of her asshole, faster and faster. She was feeling so tight and so sexy I just wanted to pound her as hard as I could.
“Yes yes! Keep pounding my ass! Fuck me all the way in my ass! I want to feel you shooting everything all the way inside my ass!”
I started coming like crazy, pounding against her and feeling myself exploding inside her. She was coming like crazy too, and her ass was yanking my dick in every direction. “Oh yes, yes! Fill my ass up with your hot come! Fuck my ass as hard as you can!”
We were in the Land of Ass Fuck. It was amazing. We were both going crazy. I had never felt anything like it, I could never imagined anything like it. Here I was, fucking my sister in the ass, watching my dick going in and out of her ass, and it was the hottest thing in my life.
When we were both done, I fell forward on her and she fell forward on the bed. I lay on top of her for a while, and then rolled often we lay there side-by-side holding hands.
She looked over at me. “So, what did you think? Was that kinky and sexy enough for you? Fucking your sister in the ass, and shooting all your hot come in her ass?”