I Imagine Somebody Else Fucking My Wife Everytime I Fuck Her

Last night I fucked her and imagined it was her sisters husband who was in her. Each time I thrust into her I imagined it was him and that I was there in the room watching and masturbating. As I came inside her and she moaned softly I imagined her saying his name and I pulsed such a wad into her.....I only wish it had been true not fantasy !