When it was getting closer to when she would be home I got naked and laid down on my bed leaving my bedroom door open. I heard the garage door open s...o I went to work stroking my cock. I heard my mom call my name but I did not answer, I knew that would get her to come upstairs to my room and I was right as I heard her coming up the stairs. I closed my eyes imagining my mom naked as worked my hand up and down faster and faster on my erect prick. Then I heard my mom, "Honey are you..." She. I love kissing her and had soon kissed her out of the dress and was fingering her smooth cunt as our tongues were entwined. Looking over ay Kev he had taken off his shorts and was stroking his hard cock as he watched us.I wriggled out of my shorts and she was soon pumping my hard cock with her hand as I worked two fingers deep inside her and stroked her clit with my thumb. She came twice, her legs spread obscenely wide as she watched Kev watching her having her cunt fingered by her loving. I returned to positions more suited to a guest and while I was in the pool I was joking with other guests, I feel hugging from behind and two beautiful tits that rub against my back. Turning, I saw his smile and felt his hands come down under the water to caress my ass. We spent the rest of the party flirting.Towards evening the weather got bad, a storm was coming and all the guests left, I stayed to help with tidying up and putting umbrellas and deckchairs under cover. When I was about to. So, after swallowing his load one Sunday I casually said, "You know if you ever need to deposit a load any other time just let me know." Good to know," he nodded, as he returned his attention to the game.I figured he was just happy with the weekly blow jobs, but a few days later he texted me: Come to my garage. I need help with an oil change.I laughed at his sly wording in case my wife read this, but I knew instantly what he was implying.I replied I'd be there in five.I told my wife I was going.