yes
It depends on both.
Steps on what part of a guy? If the genitals are involved, it is sexual contact.
It's not legal or appropriate to have sexual fetishes done with your parents so you do not ask her this.
I assume you're talking about a sexual fantasy. I strongly advise against this! You're confusing "love" with sexuality, which is always a bad idea. Turning a relationship between parent and child into a sexual relationship almost always ruins it.
You need to stop trying to get your mother involved in your sexual fantasies. It is not a normal relationship between mother and son and is quite disturbing. Go out and date and get a girlfriend and stop asking the same questions over and over.
It means your having sexual activity with them.
Sexual activity
no
Yes! Why not!
Unless she is your professor you ask her but you have to be sure you have that kind of relationship with you or she will be uncomfortable. If she is your professor she is not allowed to do anything sexual with you and this is a fetish so it is def sexual.
yes
no