You Cheat on Your Girlfriend with her Slutty Step-Sister

You, your girlfriend and I, her stepsister are spending the evening watching a movie. My stepsister drifts off before the movie ends. We finish watching it together and start chatting. You are very talkative until I mention that I have noticed that you have been checking me out, even with your girlfriend around. You try to deny it but the bulge forming in your pants is proving me otherwise. You want to cover it with your hands but it’s not really getting the job done.I begin to tease you by moving my finger up and down your crotch as you let out a pretty loud moan. Come on! If you’re loud, you’re going to wake her up! You blame me for starting this but I just laugh. I continue rubbing my finger on your cock through your pants while I tease you about being such a naughty boyfriend. Fooling around with your girlfriend’s stepsister is making you so horny and I am going very slow just to make you let out some more of these little moans. There’s no stopping me from there. I unzip your pants to reveal your huge erection in your boxers. Now I can engage fully because there’s nothing you want more than your balls drained. I can see a little spot of precum on the material and that’s just so telling. You are close to rubbing your cock on your own just so the teasing stops but I take your cock fully out and give you a very slow handjob which makes you explode in my hand and rethink your life.