It is almost like a euphoric sexual drug for me when I see Mrs being flirty and getting sexual with another guy in front of me. The peak to this sexual high comes when she looks at me and asks me when I am going to join in on the sexual fun with her. She is totally aware of my arousal and really plays to the situation for myself, and the other guy. Totally and very sexually arousing for myself and the other guy when she is sucking his cock while looking at me and she stops just long enough to ask me how much I enjoy seeing her doing what she is doing.
That is exactly how I feel and I took a few pictures and videos and watching those later always give me a hard-on.