Just finish the shower

Not every boner needs to be micromanaged, you decide. You jerk off too much anyway. It isn't healthy, but you've always been a little bit addicted to it, despite how good sex is with Jenna, even now as you've gotten older. You know that it is causing problems: sometimes you can't finish the job with her, and despite your protestations, you can tell that she thinks she's not sexy enough for you anymore when it happens. You just let the relaxing water wash away both the sweat and your erection, and try to firm up your resolve. A 38 year old man shouldn't be a **** to his dick like some teenager who's never seen a pair of tits in the flesh.
You exit the shower and towel off, checking yourself in the mirror as you pull on a pair of board shorts and throw a t-shirt over one shoulder. You have decent shoulders and arms, and Jenna always tells you that she could bounce a quarter off your ass, but you still have a little bit of a gut that won't go away. No grey yet in your brown hair, and minimal chest hair, which is good considering that Jenna doesn't care for it. A couple of scars from youthful risk behaviors aside, you aren't wholly displeased with yourself.
Reminding yourself that there's stuff to be done before everyone arrives, you head out of the bathroom, and abruptly run straight into....