I don’t want to be intrusive, so what is a good “pickup line” to have? Especially relevant for lesbians as this isn’t necessarily a queer orgy but i’m sure there will be some bi or lesbians there! Also, what is a good way to turn someone down nicely?
The trick is to approach them before the sex starts. Go say hello and have a chat. Then later it’s much easier to catch their eye and ask if you can join.