Cuckold to be

When we were younger ,about 24 i think me and my wife had a bit of a difficult relation.
Sometimes it was great , other times it didn't work so good.
At one of the bad day's we went to a party together were she talked the whole evening with another guy.
I felt a bit alone seeing the two having fun and kept an eye on them.
Before the end of the party i saw them sneek outside .
I followed them quiettly so they didn't see or hear me.
Behind the building i saw them kissing and fondling eachother and after a while my wife took his cock out .
My heart was pounding like crazy but i couldn't say anything.
She sunk on her knees and started sucking his cock and i could hear him moan.
After a few minutes she lowered her jeans and panties and leaned over to the building.
The man started to fuck her from behind and i cold hear her say "o god yes fuck me Paul ,it feels so good ".
I thought i would be mad as hell , but it aroused me more then i thougt.
My cock became hard as a rock .
After a while Paul came in her pussy and she pulled up her panties and jeans.
I went quikly inside and saw the two coming back to the party and kissing goodbye.
We didn't say much on the way home and went to bed together were i started to fondle her boobs and between her legs.
I went down her thighs and tried to lick her pussy but she said not now babe but she opened her legs a bit and i could smell Pauls cum mixed with her juices which made me hot as hell.
I kept licking her and she pushed her wet pussy up and pulling me towards her .
Then i licked al the cum out of her and i even liked the taste ,afterwards i blew my load in her and ate all of my own sperm out of her.
we didn't speak about the whole incident afterwards but that was the time i became a sort of cuckold for my slut of a wife.