When two male have sex with two females at the same time in the same room, and when they have both finished they realized they have used the same type of condom. After this they develop a bond far greater than any others and become condom brothers.
-Bro I'm done
-bro me too
- shit we both used Trojan Twisted Pleasures at the same time in the same room on our girlfriends. Bro we are condom brothers (cb)