<human>: Can you succinctly summarize the text in 1-3 sentences?

Hello, if you are going to judge or post a worthless response please turn back now.

OK. I am going out with the girl of my dreams, we get along great and I have never loved anyone like her before. 

I have a really, really, really high libido. I'm always getting sexual urges, I masturbate a lot, I swear I could find a way for a turkey sandwich to turn me on. I've been this way since puberty. 

She lives with her parents (I do too) so we can't really fool around. Sometimes we have sex in the car or when parents are not home but obviously this is rare.

I have had a FWB [19 F] for some time who I find really hot but don't really have feelings for her. She is always available to me because she lives in an apt alone and I think she has feelings for me. I can call her up at any time to have sex.

Both of them have no way of knowing either of them exists, no friends in common, different schools, etc. 

Where do I find the strength to not cheat? The temptation is too much, the only real consequence would be my guilt. I don't want to do it but I find it hard to control my urge to have sex.

Any advice? 

Thank you.
<bot>: Going out with girl who lives with her parents, getting sexually frustrated, how do I not cheat on her with a FWB?