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I'm patiently waiting for the bathroom to be free. I knock, but again and again there's no answer. Eventually, I just decide to enter the room to see what's going on. I find one of my step-son's friends is there and he seems embarrassed and flustered. I ask what's going on, and he explains that my step-son and his other friends played a prank on him by dissolving one of my husband's viagra pills in his drink. Yes, it's a funny joke, but now he's very uncomfortable, and they can't wait to laugh at him once he gets back downstairs. I'm very concerned for the guy and want to help him feel better. I ask him to show me what's going on, and I inspect his hard cock and swollen balls. Plus, it's a way for him to get back at my step-son for doing this to him. I start by massaging his cock before escalating to a blowjob, but remember that I really needed to pee which is why I'm in the bathroom in the first place. I head to the toilet and pull down my jeans and panties, and ask him if it's okay if I pee while I continue. I sit down on the toilet and continue to suck his cock. Eventually I start to pee, and can tell that he likes it. I decide that in order to not make a mess, it's best that he just cums in my mouth. He finishes in my mouth, and I show it off for him before swallowing. He's ready to rejoin his friends, but they have no idea what just happened.