He might be better off not being too specific while answering the question. Like he has a girlfriend for school, another for the evenings, and yet another for the nights/mornings.
@Kamelpov It's kind of an unfitting comparison in any case because he's basically paying all the expenses, not the girls. He's just a cheating, loose, and lustful guy. At least he's taking care of the girls in some ways, not just practicing fire and forget.