Is it normal for men to tell their best friend their intimacy with their partner?

I don't want to say that it is or isn't normal. Lots of people confide in their friends when it comes to sex. I know that I have. Now there is a difference in a kiss and tell. The best thing for you to do is if you are uncomfortable with him doing so, then I would sit him down and tell him so. If he respects you he will comply, if not then goodbye.

Well, its not my problem, but my best friend who happens to be older (24) went out with me yesterday and told me that her boyfriend told her that he told his best friend about their intimacy and she didn't get bothered at all, because he said it with pride apperantly but still I didn't know if it was normal or not. Just a question out of curiosity... but thanks! :)

No problem. If those two meaning your friend and her boyfriend are OK with it, then so be it. Normal for yourself, well that's up to you.

I wouldn't really mind if I'm both of their friends but if it was to some random guy then I would be a little concerned.

I can understand that.

It is not unnormal but I don't usually talk about that with people. To me, when I here other guys talking about it, it comes across like they are bragging about something and trying to convince you how great they are. Because of that, I never felt the urge to sound that way.

Of course! Bragging for them isn't bad I guess! I mean for the one's who do say it.

I had a little conversation with my guy the other day about this very subject. Look, if people have something in their lives that matters to them, they may want to share with a close friend.
He actually brought it up, joking that, well, his buddy knows he and I are 'intimate' (rofl cutie actually used that word), so maybe he'd think we were late for the movie because we had a quicky.
His policy is that some things that happen in the context of a close romantic relationship really don't need to be discussed in detail, but he'd happily awknowledge the general facts.
If you're okay with it, then it's all good :)

I'd say its far more common with women than with men. Nearly every guy I've known has been clammed up about their wives... now girlfriends is a whole different thing.