I've always wanted to participate in a mud run, but as a male I'm afraid my excitement for the mud will be too revealing. Does anyone else have this problem, or have any solutions to not "show off" too much?

Just wear a t-shirt that says "Mud Gives Me Wood."

It's nowhere near what you're making it out to be. Just behave normally. It's like the morons here who are like "Derpy derp what if the cashier figures out what I'm doing buying 75 lbs of pudding derp?". Nobody cares!

I'm willing to bet you have a small weiner and no one will notice you have a hard on. Just proceed normally.

Hahahaha. So ... Are you sorry you asked yet, closetdave?

I have done mud, gunge and inflatable runs, all of which ping my kinks. I was running with attractive, fit women. I did not get aroused due to the fact it was knackering running! I think the body knows what to do and I am sure you will be all right. Just have fun.

I've been around enough to know questions like this will spark some jabs. I slept quite well last night

All meant in fun, brother

Depending on what you plan to wear, possibly try wearing a women's one-piece swimsuit as underwear, with his nibs pointed down in the crotch. Then shorts, dark t-shirt, and tracksuit or whatever over it. Also, try testing things in advance, put on what you hope will control and then deliberately think of arousing stuff and see if the control clothes work.

Wear a jock and cup you'll be sorted.

Dude, no joke. That could be incorporated into those costume mud runs! Brilliant!!

That's why I don't WAM in public...