Jerking off for a couple

I have had this fantasy of masturbating in front of someone other than my wife.
My wife and I have a very healthy sex life and we both masturbate for each other, but I developed a desire to do it in front of someone else. (mwm 55)
I chatted about this fantasy online in a few other forums and the other day a guy I was chatting with said that he and his wife wanted to watch a guy masturbate in front of them. It turned out he was about an hour drive away and we agreed to meet at a restaurant about 1/2 way for both of us. Best to first meet in a public place.

The couple were in their 60s and retired snow birds. ( live in the area only in the winter time, escaping the northern weather. I own my own business and can get away for no given reason and not be missed). They were pleasant and likable. We had lunch and chatted and had a couple of drinks. We agreed to share the cost of a hotel room close by. We bought a bottle of rum and a mixer and made drinks in the room and chatted about fantasies. We got horny as well as a little drunk.

Things started with us guys showing our dicks. Mine was semi hard and his was fully hard. He dared his wife, (a petite blonde with a nice body for her age) to show her tits. When she did I started to stroke my cock. Everyone grew silent and they just sat and watched me standing in front of them, jerking.
She spoke first saying that I had a nice cock. It inspired me. He started to stroke his cock . I was watching the expression on their faces as they sat on the edge of the bed and watched me. They were mesmerized. There I was, finally stroking my hard cock, now wet from my precum, in front of strangers.

His cock was weeping pre cum now too and his wife reached over and took over the stroking. Then she got verbal and gave me instructions, telling me to go faster then slower and longer or shorter strokes or just rub the head. I thought the stroking according to instruction was exciting and was getting close to cumming. I said so and she got nasty with her comments and told me to shoot my cum for her and things like, " Hell yes boy, stroke that big cock and make it cum." and " come on... fucking stroke it hard and cum . I want to see you cum...give me lots of cum."
She was stroking his cock fast and I heard him grunt and he started cumming . His cum shooting a small spurt then lots of cum dripping fast from his cock. She caught some cum with her fingers and tasted it.
Watching her lick cum from her fingers put me over the edge and I shot a string of cum and almost hit the bed. She let out a "WOO...Yeah baby...cum...cum ...cum." and I shot out a few more strings before being spent.

We all cleaned up and agreed that we needed to sober up before doing any driving. We chatted and agreed to meet again in a week or so and do it again, but she wants both her hubby and I to jerk in front of her and see who cums first. her husband suggested that whoever wins gets to fuck her. She only said "we'll see about that."

We just set a date of Feb 4th . I'm anxious to see how far she will go. Even if he wins and I just watch them fuck it will be something new and exciting for me. If it's just a jerk-off competition, that's still a win in my eyes. I can't wait!