I grew up with two friends, whom were brothers & their single latina mother. Throughout the years she has had maybe 3 boyfriends all of which cut off contact in relatively short periods. Her & I have a kind of stepmom/stepson relationship.

Since I hit puberty I've desired her sexually and now, at 25-26 I'm having trouble suppressing that fantasy. I would go through huge periods of time believing it was over, but then it comes back again in full force and certain things trigger it, such as me going over with a pair of pants she offered to tailor and she opens up the door in a casual almost transparent nighty-dress where at certain angles I fully see her tits and panties.

Sometimes for days I'll scheme up some way to seduce her like going for drinks with her or showing up to her place one day & probing.

I know she's lonely & desperate most likely for male attention. When I think about her sexually I get rock hard in seconds, and don't know how to get rid of this desire: I'm afraid that I'll show up & do something retarded (my games shit).