Confused

Hi there I`m so confused about bachelor parties. I never ever went to it and I really don`t know about. I want to ask what does really happen at the party. He told me that on his bachelor party, bunch of his freinds and him they rented a club he was drunk when he came home that is all.I`m scared of one thing that what does really he did at the club with his freinds? I always think what really my husband did on his bachelor party and I’m afraid to ask about it to him. I can’t consternate on other things accept thinking bad things such as sexual category. Help me please? I want to ask him this burt how?

Thanks