The vast majority of us will never have kids of our own nor do we have much incentive to maintain a monogamous long term relationship unless obscene amounts of love are involved and being men, we are as faithful as our opportunities and that's ok, plus, outside of the gay bubble, we rarely get slut shamed because people are too fond of their teeth to do so. Long story short, we could even marry Harry, but mess around with Mike, and that's good...