Strippers are fun. It's a fun way for guys to get out and blow off some steam. Much like the way women like to go out with their girl friends and have some drinks and dance at a club, although the two hypothetical situations are not synonymous. Women also enjoy seeing strippers, and men like to go to the clubs for drinks and dancing, too. It's another way to blow off steam. Strippers and strip clubs are not what the movies and porn portray it to be. They are there to work, not to give your BF a BJ in the private rooms. As long as you trust your partner and you know they wouldn't do anything to disrespect your relationship by actually cheating on you, then what is the real harm in him going out to enjoy an evening of watching some good looking women dance around a pole? Maybe it's not your thing, but it's a waste of time and energy to try and stop a person from engaging in these behaviors, especially when they are young and feeling adventurous. If it's something that becomes a problem and he is out at the strip clubs every week, spending money he doesn't have, and drinking into oblivion, then that's a bigger issue - and a separate issue at that. Let him do his thing and have fun. Why not go out with your girl friends for a fun night out, doing something you enjoy at the same time? All it is meant to be is fun, and if you try and control him and force him not to engage in these things, he will either resent you, or he will do it behind your back. It's all about trust and open communication. You can tell each other how you feel and what you need, and it's up to the other person in the relationship to decide whether they want to respect that or not.
The girls kissing each other thing is hot to a lot of guys because it's taboo. It's all about a porn fantasy that a lot of guys have because two attractive women, kissing and turning each other on sexually, is a huge turn on for a lot of guys. It's not gross, it's porn or it's sex between two females. That isn't gross. Just like sex between a man and woman isn't gross either. Obviously you are entitled to your opinion, but you are exclusively entitled to your own opinion, and you are not entitled to decide the opinion of others on that topic (or any topic for that matter).
"Caring is not an advantage."