So this girl I have known for a long time, we are good friends. send me a text today and says it's really hot out we should hang out and do something fun like have a mud fight. I didn't know what to say so I said maybe it sounds fun and told her I would let her know. Now as u can guess I really wanna do this really bad but I'm afraid I'm gonna get turned on so much and it's gonna freak her out. So my question to everyone is how do I do this without her knowing I'm really turned on by it. Don't want our friendship ruined over something like this but also don't wanna miss a golden opportunity. Thoughts?

Wear tight underwear under loose shorts.

don't wear khakis.

Haha good advice. I've just never done anything messy with a girl before. And she doesn't know about the whole fetish thing and I'm just nervous. Hopefully it goes well just trying to stay calm lol.