When my mother sent me to find my stepsister, I never imagined it would change my life. My stepsister was taking a shower and I could see on the bed the sexy lingerie she was going to wear. I couldn't help myself and masturbated to those sexy clothes. I was so horny that when she gets out of the shower, I didn't have time to leave, and I hid in the closet. She surprises me with her panties in her hand and threatens to tell my mom if I don't show her what I was doing. With no way out, I had to masturbate with her panties in front of my stepsister. She, to my surprise, starts masturbating while looking at my cock and then gives me the best blowjob I ever got in my life. Already very horny we fucked in several positions until I filled her pussy with my cum!