ATTN: joke incoming. may not translate well to english. go fuck yourselves if you don't like it.
After the shipwreck, the two sole survivors, both male, get stranded on a desert island. They spend the first several weeks finding ways to survive, they build a shelter, learn how to start a fire, how to fish, explore the island, etc.
Eventually, after a few months, one of them can't stand not having sex for so long and tries to convince the other dude to let him fuck him:
- Come on, let's do it, just this once, nobody will ever know, I promise.
- No way dude, I'm not going to turn gay.
- Come on, man, you don't become gay the first time.
- You sure?
- Yeah, man, you didn't know?
- Ah, what the heck, ok, but just this one.
A few more months go by, the first dude gets horny again:
- Come on, man, just one more time.
- No way, bro. I let you fuck me the first time, but I'm not going to become gay.
- Come on, bro, your don't become gay the second time.
- You sure?
- Ah, ok, but this will be the last time.
Another few months go by and the second dude asks the first one:
- Dude, I was wondering... do you become gay the third time?