There had been several instances where he had to remind himself that she is his grand child and that he couldn't be staring at her and getting hard li...ke he was. He felt so ashamed because at night he was actually going to bed and jacking himself off while thinking of his beautiful Erin.It had been a long week and they both decided they needed to relax. Saturday afternoon Erin went for a dip in the pool while grandpa was taking a nap. The cool water felt so nice on such a hot day. After a nice. I lifted up her legs and went back to screwing her. I leant forward sucked and nibbled her nipples before kissing her passionately “This is so good. Don’t stop.”Every thrust seem to push her up the bed until she was holding onto the headboard.“How bad had you been?” I asked.“Very.”I pulled out and got her onto all fours.I slapped her arse a few times, each slap getting harder until she told me to stop.I gave each cheek a gentle kiss.“How bad to you want to be?” I asked.“You want to fuck me arse. He delights in either watching my exploits in person or receiving a running commentary of my exploits after the event. Mostly while I am either milking him or riding him slowly, reliving every moment of my infidelity.The terminology for our situation is best captured I suppose as the Hotwife syndrome. I love to flirt and flaunt, as long as I get the benefit of the erection I’ve just created, and he loves that I choose to behave in this manner, gaining immense pleasure watching me arouse and. I lay still, hoping he would roll over and leave me alone. A moment later, I felt his fingers slip under the waist of my pajama bottoms, and then he was sliding his hand under the sidestrap of my panties to rest on my hip.I muttered incoherently and tried to push him away -- but vaguely, still faking a half-sleep. If he wasn't all that awake, he probably wouldn't even notice, and I could push his arm enough that he'd take the hand away. Believe it or not, sometimes he does all sorts of things.