Step-sister never knocks

I cannot believe that she just walked in on me stroking my dick! And now she wants to watch? She really just wants to sit there and watch me stroke my cock. This is so unreal. Maybe I can convince her to actually help. Her tight, sexy body and that cute face are irresistible... Yes! I not only have her out of her clothes, but I have her mouth wrapped around me with stepmom right outside. She works my shaft like a natural even though this is only her second blowjob ever. She's getting so wet too. Who knew my own stepsister would have an oral fixation. Lets see what else I can get out of this encounter... This is by far the best pussy I've ever had. She probably shouldn't mention to her boyfriend that her own stepbrother fucked her little brains out and took her virginity. She is so hot bent over and moaning while I take her. I think to finish I'll let her ride me for a bit before I ask her to swallow every last drop of my cum. I have to be quick or my stepmom will definitely hear us.