How to Turn a Date Into a Threesome

I would imagine a threesome as your first time in bed with somebody could be very stressful. There's a lot of moving parts in these conversations because you don't want anybody to feel like they've been tricked into it or like this was your plan from the start so who do you talk to first how do you feel out if it's okay with everybody and then also are these people that you've hooked up with prior or is this a first-time thing? I'm gonna focus on one of the more titillating things you've brought up, but we'll go through some other stuff too.