Stepbrother! I Need a Favor. Cover Me up… but Not with Milk!!!

I’m asking my stepbrother a favor. I’m asking him to cover for me and watch the door to our parents’ room so his mother doesn’t catch me using his clothes. I found a sex toy among his clothes! We started fooling around a bit, and he pulled out his dick and asked me to suck it. He said if I didn’t, he’d tell Mom that I was going through his things. I sucked it, he got really turned on, and he fucked me really hard until he came on my tits!