When two men have seen each others penises,
"Me and Mark are Jungle Brothers now"
"How come?"
"I saw his penis so I pulled my pants down so he saw my penis too"
1๐ 1๐
When two men have contacted the same STD from the same sexual partner.
โYo, I heard you banged Adrian.โ
โYea, what about it?โ
โShe has Herpes, dude. Weโre jungle brothers!โ