Is it normal..

It is normal because if it ever happens between you, you would know how to please each other!!

If you're too shy for confrontation then a good way of dealing with this is to give gross/humourous responses.

Example:

Male friend - "What technique do you use when you suck cock?"
You - "I just bite down real hard until it snaps off. The guys love it"

You get the idea. Makes the situation non sexual without you having to have the awkward conversation of asking your friend to back off.

I've found that the ones worth being friends with will get the hint. The ones who keep pushing it will ultimately just grab you and try to kiss you during a drunken night at some point in the future. They will apologise and say it was a drunken mistake, but they will keep doing it indefinitely. Those guys aren't your friends.

Yes men are animals

Yeah he probably dreams of getting you in the butt

Yep.

Yeah it is. We are probing for an way into your sex life. Don’t take it personally every female friend has floated through our dark minds at some point.
If you don’t like it just ask for us to stop. The creepy ones that continue though should stop being your friend.

hmmm, idk is it?