Fuck her asshole.

You spit on her butthole and stick a finger in. It feels nice inside. You add some more spit and work your way up to two fingers, and then three. All the while Scarlett moans in pain and pleasure. Then you stick in the big guy. This time she mostly moans in pain.

You go slow, for her sake. It feels so good inside. The last place you expected to find yourself today was inside your best friends asshole, not that you're complaining. "It hurts," she says, with a tear running down her cheek.

"Push out," you tell her.

"I am pushing out!" she shouts, "You owe me one. I don't even know why I wanted to do this in the first place." Yet despite what she says, she never tells you to stop, and even begins to enjoy herself a little bit when you begin twisting her nipples. Eventually, her butt adjusts and you can go faster and faster until you are hitting right up on her butt cheeks. You stick a finger in her mouth and she begins to suck on it. What you wouldn't give to cum in her tight little ass right now.