"Are you.. open about it? I mean, does everyone know?" Everyone aside from Percy, until that dream of his happened. He was quite oblivious when it came to anything pertaining to sexual desires. But Anthony's behaviour in the dream!library made it very plain to see.
"I'm sorry if this questions are too, ah, personal." Worrying his lip, Percy looked down at the leather binding of his book. "It's just, you see, I haven't known anyone like me."