Well first thing I would say is relax.
Everything will be just fine.
Are you planning on meeting somewhere first for dinner, drinks, dancing or are you just going to invite him to your place or a hotel and then play?
I can tell you what has worked for us in the past. We met a single guy for dinner for the first time. We chatted with him over dinner got to know him a bit. Then at the end of dinner I knew MrsVan wanted to invite him back for to the house so I just asked him, would you be interested in coming back to the house? He said yes and then followed us home. We played some pool for a little bit and had a beer and MrsVan got a bit more comfy and started flirting with him. Eventually she was ready and she made the first move with the guy and then we headed to the bedroom for some playing.
I would say just take it easy and slow. You already have one thing going for you in that you both already know each other AND you have already played together. So I think this will happen alot easier than you think it might.
Good luck and enjoy the evening!
I know MrsVan loves to be the center of attention like that...I mean what lady doesn't right?
-Van