Kept In The Family

For all our married life over 40years I have known my wife has had an affair with my brother, the thing is all their scheming and engineering situations so they can have sex actually turns me on even now, it has become such a regular thing that she doesn’t discourage me having sex with her after she’s been with him, she thinks that I believe it’s me that’s made her pussy so slick with excitement when she’s full of his sperm, it all started one drunken night when the 4 of us had been out clubbing and we stayed the night at theirs, my brothers wife had gone upstairs to bed, I crashed out on sofa and came to listening to my brother and wife making out on the other sofa, I just thought it was gonna be a bit of drunken snogging between family then half opened eyes saw he had his hand between her legs which half angered and half excited me, when I heard him whispering asking her to take her knickers off and her response telling him to turn the light off my sexual arousal got the better of me and I watched as he got up to switch it off she checking I was still asleep quickly removed her knickers hitched her skirt up and laid back legs open for him to go down on her licking her out before unzipping himself and then spending the next 20 minutes or so committing the most intense love making trying to be as quiet as possible before the ultimate betrayal of him shooting his load of sperm into my wife’s fertile vagina, the sounds of them trying to contain their grunts and groans and the noise of her now squelching pussy lives with me today, I realised I had let them cross a line of no turning back, not only had I let my brother possibly impregnate my wife and her allowing him to, but now they had consummated their bond it was clear they both wanted to Carry on an affair, after he had finished with her and gone to bed I not long after proceeded to have the dirtiest sex with my wife ever