Relationship advice: need opinions on something

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Navane said:

So I was talking to my girlfriend yesterday and the topic came up about strip clubs. She told me that if she was invited to one she'd definitely go. She rationalized it as she wouldn't be cheating since she isn't doing gonna have sex with anyone and said I could do the same as long as I at least told her. She likes to tease me hardcore sometimes, so she could be teasing me again but I just let it go since I didn't wanna make a big deal out of it. But this isn't something I'm comfortable with her doing since I wouldn't do it myself. 

Here's my logic on the whole matter: if she goes to a strip club with her friends then maybe she'll start getting ideas in her head about things. Then she might start becoming dissatisfied on a physical level (I'm a short skinny guy but do have some muscle definition at least) and might lead her to cheat on me. But then my counter argument is that we have seriously great sex (at least for her anyway). Like, I've made her orgasm over 30 times over an eight hour peirod. So I think "If I'm there for her on an emotional level (which I try my best to be) and a phsyical level, then I should have nothing to worry about, right?"

I just don't know what to think about this and if I should be okay with her going to a strip club should it ever happen. Maybe it'll be a bit of harmless fun for her, but I can't help but feel it wouldn't benifit our relationship at all and be destructive on some level. This could just be my insecurities speaking, but I want to hear some thoughts on the matter.

tl;dr Girfriend wants to go to strip club, I'm not okay with it. Thoughts?

OP whatever you do, DO NOT SHOW ANY SORT OF INSECURITY. The moment you show any sort of insecurity on anything about yourself, say bye bye to your appeal as a man. If she wants to go to strip club, say you wouldn't like the idea but don't turn it into any sort of things about how you're worried she would cheat on you etc. If she insists, let her be. If you get the chance, go yourself.

Women don't like clingy, insecure and strict men. Be a gentleman but not a nice guy. You should know how to enjoy your life as a man, the moment you cling on to your girlfriend or start to imply that she is everything you have, will be the moment you'll begin to lose her.

Be sexy, be naughty, be playful but don't be a jerk. In short, don't be boring, let her see a carefree side to you, you GOT TO SHOW THAT THERE ARE OTHER OPTIONS FOR YOU TOO and that the relationship goes both ways.