My girlfriend has dropped hints about a fairly strong desire to have a lesbian/bisexual encounter with me in attendance.
It seems that the least complicated way of introducing that type of activity would be to go with a bisexual provider, but I'm not sure how she will react to my asking about playing with a "provider."
One idea would be to have a provider meet us at a bar and seduce her, but that could end badly if she finds out. Plus, I would be involuntarily exposing her to certain health risks (whether real or perceived) that she might not have taken on her own volition. On the other hand, the idea might be a complete turn-on for her.
Advice?