I would not mention it, just asume it's a male thing. Like when you go to the showers at the gym and people are just changing their clothes there and are all naked like nothing, between men it's nothing weird. On the other hand it was your house and, well it is expected that you do such things at your place, so don't overthink it. If you are still ashamed, it will go away in a couple weeks maybe, you'll forget and even laugh about it and even tell it to your friends.

When I was in school, and I mean late like 4th grade I peed myself during liturgy in front of everybody, I was an acolyte at the time so everyone saw me pee myself all over the place next to the priest. I had to stand there for the rest of the mass, with my eyes fixated at nothing and repeating to myself that I was not there and none of this was actually happening. Everyone laughed at me, and made a huge deal out of it for the next months. Nowadays I tell that story to my friends when we talk about embarrasing situations and just laugh it off, it's the same with almost everything. I have a lot of experiences like that, ones that even made me cry then but now make me laugh.