My gf wierd fetish ! is it ok ?

totally irrational bro just kick back and see where the ride takes you, maybee you will learn an important lesson for the Future, its better to learn your lessons young then when your old, and tell her hey i kinda over reacted i understand people have their own fantasy but come on 2 guys and one girl from a guys point of view is yuck, then maybe finish by telling her one of your fantasy.