Should I go for it?

Girl you do not want that shit. He will just do the same thing to you that he is doing to his current girlfriend. You can't trust men like that. Besides he probably has other girls that he is having the same conversation with

I bet I know what she doesn't do and you better not go for it your so young and so innocent he was looking at you in probably a more interested in what you look like naked look. He should have no reason to not tell you what she doesn't do unless he thinks if he tells you right then you won't do it I bet he thinks he can pressure you into something you won't be willing to do. That's just my opinion but you should know that most guys are animals and only want one thing.

Sign doesn't have a lot to do with it (debatable). You never want to get involved in breaking up another relationship because odds are if he's willing to drop a girl and get to you so quickly, he won't have a problem doing it again with you. He's probably a typical teenage guy thinking the grass is greener on the other side. Do what you will, but it's not a smart decision for you to make the call on whether or not him and his girl break up. That whole situation seems a little odd to me.

Same sign are we in the 80's? And what things could this be let me guess males are so easy, 1- did she not give it up as often, 2- let me guess she won't do the bj, and finally lets say he is a descent guy, may be he has womanly needs as well

Have answered this type of question quite a few times on this site. Let me put it the easiest way I know how. If you encounter a guy with a girlfriend, then LET HIM BE. Going for a guy that has a girlfriend is a LOSE/LOSE situation. If you try and get him, and he stays with his girlfriend, then you LOSE. If he leaves his girl for you, then he will leave you for another girl. Guys that leave a girl for another girl will do it many times. Is that the type of guy you want, is one that will leave you for another girl? It's a lose/lose situation.

You should just leave this dude alone. Think about if he just happens to leave his current girlfriend for you then most likely he'll leave you for another girl also. If his last girlfriend didn't want to do anything with him chances are you won't want to do it either. You shouldn't even mess with guys like that. Just keep doing you and you'll meet a guy who is available.

Don't bother with him. Keep being you, and you'll meet a guy who doesn't have a girlfriend. Besides, if he's looking for something different than his current girl - then he'll also want more than you can give down the road as well.

Don't mistake flirting with "having feelings" - and by do things she doesn't do, you can expect it's not anything you're ready for.