3sum
I suggest finding that perfect sumone and you all go for drinks. Get to know one another without the pressure of sex. Don't even mention it. Next time you go out you all get more pissed drunk and one thing leads to another.
Its GOT to be spur of the moment and spontanious. If you "plan" it dusn't work. She will get too nervous and you'l have a hard on all day and night.
I wouldn't get someone from perb. You may be very lucky and find that perfect someone but you should ask around. People at your work, you RMT, friends, girl/guy at the bank. Just say....i would love for you to come for drinks and meet my wife...don't say i wana fuck you, that comes later.
Anyway....
stay in your circle of friends or people you may know or know of. You must be able to trust the person in more ways than one. You'd be very surprised how many people are sexually fun out there but just don't know where to go.
Thats my 2 cents...
With open legs,
Mac