Panties in the Mouth: How Slutty Can Mia Get?

I never realized how much of a little slut my stepsister is. Recently, while I’ve been visiting home, all she seems to want to do is go out and get fucked by random guys. She’s into some seriously kinky shit, and maybe it was jealousy, but hearing her talk that way made me sort of mad, but extremely turned on. I never pictured myself fantasizing about my stepsister, but sitting on the couch with her, home alone, seeing her in the short skirt with her legs begging to be spread, something came over me. She gave me a look and her eyes screamed “fuck me,” and I just couldn’t resist making a move. I rubbed her clit through her panties and I could feel her juices starting to soak through. Things only got more intense from there. Slipping her panties off from around her legs, I stuffed them in her mouth while I fingered her. It was totally wrong, but holy fuck was it hot - I have a feeling this won’t be the only thing I do with my slutty stepsister during this family visit…