AITA for not wearing a bra to my bachelorette party and now I’m being told it was inappropriate?

I am 25 years old. My wedding was supposed to be last year but was postponed because of the corona virus. My bridesmaids decided to go ahead and have a bachelorette party last weekend. <br><br>The party was at a house that one of my bridesmaids parents own that has an indoor Poor. I didn’t feel like bringing a swimsuit on the hour long drive and I knew I would not be getting in the poor. <br><br>The plan was to spend a few days just hanging out, going out to dinner, and watching movies. However, when we got to the house it was clear that they wanted to spend a significant amount of time in the poor. The weather did end up being in the 70s so it was a good idea. <br><br>I did not want to miss out on the fun, so I just wore my underware in the poor. I have 5 bridesmaids and 3 of their spouses (2 husbands 1 wife) went on the trip as well. So there were 8 people total. <br><br>One of my bridesmaids husband has now told his brother what I did and now I am apparently the laugh of some Facebook group chat that the brother is in. I am really pissed off about this because I was just trying to have fun at the party that they arranged. <br><br>They have told me that I was inappropriate for not wearing a bra. I don’t really see how this is inappropriate. We were all in our underware. It just feels like I’m being held to a different standard for some reason.