My Husband's Own Fantasy Is Now Mines Forever.

Two years ago my husband and i were celebrating the rest of our 10th anniversary the night after we returned from a weekend cruise. We were having such a wonderful time when he came up with the idea with what he called 'do as i say'. It were designed for us to live out whatever hidden fantasy we have for one single moment without holding it against each other. We talked about it and add our own rules to it which we both agreed on.

My fantasy was first which he hesitated to 'do as i say' but he prepared himself mentally and it was done. I told him i would love to see how far up his butt my 6" dildo could go just to see the reaction on his face. I literally fucked him for the first time that night.

Now it was his turn for me to 'do as he say' and guess what came out of his mouth?
My husband's fantasy is to see our 24yo son who lives in the same apartment complex as us 'FUCK ME'. Now not only was i shocked to hear that but i also felt embarrassed and disrespected.
Straight away i told him 'no way' !! not at all !! He tried hard to convinced me that night but i continue to shut him down and ofcourse it ruined the rest of our celebration.

Two weeks later the thought of me letting my son fuck me flashed through my mind and the weirdest part of it is when my pussy started to get wet at the very thought of it.
By that time i was too embarrassed to tell my husband about it but i did a week later.
Now you all should see the look on his face when i told him i got wet at the thought of it.
I then told him our son would not even harbor such a thought much less to even go through something like this but he said if i am in i should leave that part to him.
I am not so sure why i agreed but i allowed him to go through with his fantasy.

The following weekend we invited our son over for dinner. After dinner we were having some of the finest wine from our wine collection. We were drinking the night away when i quit and went for a shower and went straight to bed. I usually sleep in lingerie at nights but this time i went to bed naked with my legs spread wide apart as i already felt horny from the drinks with my pussy already wet.
As i were about to dozed i felt a tongue running up and down the split of my wet vagina while tonguing my clit at the same time. I was wondering who it was but it didn't matter at the time because of the feeling of it which felt awesome.

I got the answer when my husband came to my ears and whisper "just do as i say and fuck the hell out of that kid".. I immediately got off the first of many orgasm when he mentioned it and from there on my son and his father proceeded to 'FUCK ME' that night in every one of my holes which lasted through the night and into the wee hours of the morning.
When it was daybreak our son was still in our bed when i saw his morning stiffness.
I wasted no time to capitalized on it when i rode him through another round as the noise of it awoke my husband who watched and got off in his hand.

It got us in a very awkward position thereafter but during the following days it healed itself. Now my secret from this confession is that me and my son are still fucking even to this day behind my husband's back. We even fucked each other last night before my husband came home.
My husband have already told us the night we started this that this fantasy should not continue. We all agreed but little did he know that his fantasy have already reached the pinnacle of my heart. I even started carrying out my own fantasy on my son by using my dildo on him which he didn't have a problem with.. I read many stories of this but never dreamt i would be a part of this but pandora's box is now wide open..