At my wife's mom and dads home recently (Our apartment was having extensive work done to it) we were making out, thinking her mom was sound asleep upstairs, and knowing her dad was on his night shift.
Fucking her tight asshole from behind, I became aware of someone stood off to the side by the doorway. Stopping for a few seconds, my eyesight focused on my girlfriends mom masturbating whilst watching us. She was completely naked and u could clearly see her playing with her pussy.
Helen my mother in law, gave birth to my wife when she was only fifteen, my wife now being twenty six. And for a woman in her early forties, she's one hell of a fine looking woman. In some ways, better looking than my wife.
Not wanting to spoil, and quickly realizing the situation, I carried on looking directly at her and then thrust hard back into her daughters ass.
Helen beamed the biggest of grins at me, then really began to frig her pussy. Watching each other, I saw her shaking and knew she'd just orgasmed. It spurred me on and I slammed my cock as forceful as I could, as fast as I could up my wife's asshole, and then had her tremble on my dick as she climaxed.
Holding her left breast and continuing to rub her pussy, Helen smiled at me then pouted her lips. That was it for me, I blew my load deep inside her daughters asshole, shaking as I did from the intensity. When I looked back round, Helen was gone.
My wife commented it was one of the hardest times I'd ever fucked her, but said she loved it. I didn't yell her why, and didn't say a thing the next morning when Helen asked if we slept well. She however said "Had a weird dream last night. Dreamt I'd been taken sexually by a young stranger". My wife looked at her, then I definitely saw her wink at her mom.
Later on that day with my wife's dad snoozing in his chair, my mother in law cornered me in their kitchen. My wife was taking a bath, which left us basically alone. Walking right up to me, Helen placed her right hand on my cock bulge and told me "Loved watching you last night, how about doing the same for me". Before I could say anything, we both heard my father in law shout out about Helen getting him a beer. The moment was gone, but not before Helen reached inside my shorts and gripped, I admit, my growing cock. Smiling at me and stroking my dick, she replied "On it's way honey". Then under her breath she added looking directly at me "I hope". During the next couple of days, mainly because my father in law was on his days off, nothing happened. And we moved back home. But.
Our apartment was due to be done, and is practically finished. Yet the builders have found a problem which means moving out for a couple of days. Those days set by them are in a weeks time. In a weeks time my wife will be in Europe and my father in law will be back on his night shifts. My wife has already arranged for me to stay at her parents home, with Helen and bizarrely my wife saying "I'd be most welcome".
I'm not certain, in fact who am I lying to out there. I know if I'm alone with my gorgeous looking mother in law for two maybe, I've just been told, three nights, I'm going to fuck every hole she wants me to. Yet that's not what's bothering me. What's messing with my head, is does my wife know, and has she given her mom the go ahead to have sex with me.