Dancing with My Lovers

My lover and I go dancing at a small club every few weeks that plays EDM until 2 or 3 in the morning. The crowd is younger than us, but we dance with everyone. We are very affectionate and kiss and surreptitiously reach our hands into the most intimate places. The last time we were there, a former lover of mine, a ballet dancer who I'm still friends with, came along as well. We danced together sometimes and watching her dance, I found myself wanting to leave with her knowing that my current lover would see us and follow us back, watch as we went up the stairs and listen outside the door as we had sex. Knowing that she was outside the door, I'd be especially vocal so that she could hear us and, since she's a voyeur at heart, hopefully become turned on enough to come in, watch us and masturbate.