I can relate @Yukon_Niner on that, most men can too.
It's after you get in there, put in a shift in dat cooch like a possessed haywaan, then as soon as you bust your nut, your straight up disgusted with the chick that laying under you.
That only happens to me when I get into random one night stands, or if I f*ck some chick I'm not really attracted to but would still bang. Worse is when they try to cuddle and you not feeling them