Hi guys. So I've been with this girl for about 2 years, and we are thinking about branching out by letting her fuck another guy while I watch. I've never done this kinda thing before, so is there any advice I could get from those more experienced in this area? I'm not quite sure why the thought of this turns me on so much, but it just does. We have both agreed that it shouldn't be with anyone either of us know and, of course, we will meet with this guy beforehand to make sure he's not a psycho/serial killer/etc. (DD free, and condoms of course).