Michigan yay

Nicole • I'm 17
So going to Michigan with my bf for a wedding he's 21 I'm 17  and him and his buddy's r going to a strip  club.. for his buddy's last night. Before married... should I let him go or should I tell him no?? 
Also the girls r going out. And there 19-20 and I'm not even close to there age... so?? 
I might just stay at the buddy's house. 
What should I do