Heterosexual has questions

I am a heterosexual man who has legitimate questions about homosexual intercourse. 1. How does man on man sex end If 1 is doing the penetrating and climaxes how does the other get off? Do partners swap out night by night. 2. Women dont really have an off button do yall set a time limit? 3. How does a couple decide who is doing what yo whom? Can you just tell sometimes or do you have to have an awkward conversation before the initial deed?