It depends. Some girls like being 'touched up' and some find that very inappropriate, you need to know the girl before you try anything first.
don't it makes them uncomfortable
ok you say. sexual woman will you please go out with me?
A cheating bi-sexual.
its a girl who gives hard sexual activity
no, nobody wants to see it. If you wish to have a sexual liaison with someone, please, find a private place where the two of you can consensually play around.
sexual intercourse
Each girl is different. There isn't a single right answer.
Trans sexual.
Talking about a sexual experiencing not involving the girl. For example talking about your sexual experience with a previous girlfriend from a long time ago. Or trivially talking about sexual things like its no big deal. Anything that can make a girl visualize something sexual without you literally involving them in the sexual topic can be good. VIEWER DISCRETION: Never ok in the workplace.
Pregnancy results from sexual intercourse.
Yes
No he is married to a girl
By playing with her private parts