Yes

Billy and Tommy are laying on their sides, facing each other. Billy lets silence be his answer. Tommy raises his eyebrows, moving Billy closer to him. They groins rest against each other.

Billy starts to speak, but Tommy shushes him and says, "Just let your body do what it wants to."

Billy's never felt a freedom like that before. Not only because of Teddy's conservational sex habits, but also because he's never related to someone the way he relates to Tommy. There's a safety in that. His twin. His biological duplicate with the same desires.

Billy turns his mind off, letting his primal instincts take over.