Bad embaressing decision, recover?

while we were all drinking, they gave me cash to show my breast and dance. i made bad decision

Now I feel embarrassed, uncomfortable around them, and ashamed that I didn’t shut it down. My boyfriend didn’t seem bothered at the time, but I can’t stop thinking about how wrong it feels now. I’m not sure whether to tell him how much it’s been weighing on me or if bringing it up will only make things worse?