It seems everyone's turned on by the idea of hot twin brothers having sex but the twin brothers themselves.

I dated one of 2 hot gay twin brothers once.

On one of our first dates, he was like "OMG I hate having a gay twin. Everyone's always like 'Ohhhh do you guys mess around?! wanna have a 3some??!' and I'm just like 'EWWWWW!!! THAT'S GROSS!'!!"

And all I could think was "... damn..."