Are any other dudes really horny if their bladder is full?

So... You might need a little backstory. I've been participating in a group called NoFap, the idea is to try to stop masturbating, for some of us it's a thing to learn some self control. That's what I'm in it for.

Anyway, this has happened a few times, if I really needed to pee I'd find myself feeling really horny. And as soon as I use the bathroom this desire vanishes. This happens a lot in the morning too, though I just realized this a while ago. I thought I was just horny because morning wood, but I noticed that it would stay with me almost exactly until I use the bathroom.

This is normal right? I mean, it's weird, it's like it's happening because the bladder presses on the prostate or something. Either that or I've got a crossed nerve somewhere.