How many is too many? At once, you're pushing it if you've got more than two girls in there with you, but women can in theory accommodate three guys without running out of places for the guys to put it.
In total? As many as it takes provided you don't get any diseases or unwanted children. But if you've got to sleep with a thousand people to find the one you love, then go for it and it's none of your partner's business, provided again that you've no diseases or kids.
In total? As many as it takes provided you don't get any diseases or unwanted children. But if you've got to sleep with a thousand people to find the one you love, then go for it and it's none of your partner's business, provided again that you've no diseases or kids.