When a guy has a crush on a girl does he think about having sex with her?

Not necessarily. It depends on the person though. If he is a womanizer and only looking for one thing, then yes. But some guys aren't as shallow as those type of guys and may genuinely like the girl for her personality and not the various uses for her body.

I really like a girl because of her personality. She is super nice. And to be honest i always think about sex with her. But sex isnt the reason i like her. Maybe the forth reason...

It depends on his intenstion, some of them needed the right love and other are only interested for sex

Yes

He might.

Thank you Tatumn... All guys aren't doushebags :(... Lolz jk

By default  sex are the only one things which can be shared with lovers & not with family members if u both are really happy then don't waist time & rock the bed

Maybe sometimes yes guys think about having sex with the girl they have a crush on and sometimes they dont.

It just depends on the guy... I k ow when I have a crush I don't think about have sex with them untill we r ready