So I thought that my whole family was out of the house, but I guess my creepy step bro was still there! I was laying on the couch when he snuck up behind me and scared me. I didn't know anyone was home! I was basically naked on the couch! Then I looked down and HE WAS HARD!!! I was so grossed out, but I figured if I helped him make his boner go down, he'd leave me alone! I was wrong!!! I sucked the soul out of him and he came down my throat!!! I thought that would be enough, but it wasn't! I was so mad that he didn't even tell me he was about to cum.... I told him I'd quickly make him cum again if he promised to tell me! I got back down on my knees and proceeded to suck his cock harder than any cock I've ever sucked in my life! He once again, did not tell me he was about to cum! He came all over my tits! My parents were literally getting home as he came! Hopefully they didn't see us!