Quote from Phoebe in The One with the Hypnosis Tape
Phoebe: No, I know, I know that this is Frank's life, you know? I don't want to be all judgmental, but this is sick. It's sick and wrong! Ross: Pheebs, what is it the age thing? Phoebe: No, no. I'm fine with the age thing, until it starts sticking its tongue down my little brother's throat.