[Aspie] If one is a virgin, how is he able to fantasize about intercourse while he masturbate

[Bookist]

If one is a virgin, how is he able to fantasize about intercourse while he masturbate?

I mean if you never had intercourse then you dont even know how it feels like, so when you masturbate how can you fantasize about something that you dont even know how it feels?

The point is to simulate having intercourse in your fantasy when masterbaiting...but what if you dont know how intercourse feels?