With the final contraction from Shelby’s pussy on his cock, Mark collapsed on to Shelby.
Satisfied, Shelby practically purred. She had never been so thoroughly fucked in her life. This may become her new favorite past time.
“Mmm, Mark. That was amazing. You’re the best fuck I’ve ever had. Do you want to finish in my mouth?”
“Huh?” was all Mark could say, “did you want me to suck you off?” replied Shelby.
“What? I came already.”
“What? Where?!” Shelby stated, starting to panic. “You told me to cum in you. That you wanted to cum on my cock as I was cumming in you.”
“Oh no, fuck. Mark, I’m not on the pill! I told you not to listen to me at the start, I know me and I love having a guy cum in me. It makes me cum harder. Fuck!!”
“Oh, shit.” was the only thing Mark could reply with. That and a hardening cock.
“Well, we’ll get the morning after pill tomorrow. Since the damage is done, I’m not done fucking that pussy full of my cum, Sis.”
Oh. Fuck. That was hot. Who would have thought baby brother had a dominant side?
With a long stroke, Mark started sliding in and out of his sisters cum filled pussy again.
For a night of breaking boundaries, it was going to be a long and satisfying one.
Added by MissNerd