Exhibitionism and voyeurism

I'm waiting for a couple I know to come by. Me and the guy are setting it up to where she comes to my door ahead of him and finds me naked and vigorously stroking my cock. I'm going to continue to go at it as if I didn't notice they were standing there and we're going to see where that takes us. Should be a real turn on for me. I will let you know the outcome.