How old are you, Jack?? If the answer is “older than 16,” let me be (apparently) the first one to tell you that it’s creepy to mess around with 16 year olds at practically any other age, full stop. I’m sure you’re capable of reciting consent laws from memory, but before you respond with that, know that there’s really nothing you can say that will make me think it’s all right for a 21 year old to be put together (especially by force) with a teenager.