After breakfast each morning, as everyone changed into their swim stuff and headed for the beach, I would start to get hard. I would always excuse mys...lf from the group and go back inside to "go to the bathroom", or "get everyone drinks", or any other excuse to rummage through their rooms un-interrupted and smell their freshly worn panties. Most times I wouldn't have a chance to fully pleasure myself to the panties. I was always too worried about being gone too long, or someone coming back. Mother was snoring just inches away from me. She was straight from the fuck and was wearing only a transparent nighty of knee length only. She was facing away from me and her ass was completely facing me. I got very nervous and tried to touch her, slowly touched my finger to her sexy ass, slowly moved my finger. There was no reaction as she was in sound sleep. I managed to keep my trembling hands to her ass cheeks and rub it. I was in a different world and start lifting her nighty as i wanted. “I’m good. I needed a nap. How’d the fishing go?”“Good, sort of,” he answered wryly. “I need a shower.”“Good, sort of? Does that mean you caught something or didn’t catch something?”He snorted out a laugh. “We caught stuff. Tully got himself a real nice blue marlin, a big one, and we got a lot of photos.”“And you? Blue marlin? White marlin? Sailfish?” she asked, smiling. Liz Cramer couldn’t tell one fish from another, but Bob had shown her pictures of the various big sport fish.He made a wry. Holding my legs she drove her cock up into my anus with the final strokes she needed to get her satisfaction. Lying there, there was nothing for me to do but take it like a bitch. I was her personal whore and like a good whore, I was being penetrated and servicing my mistress's cock to completion. She moaned in pleasure as she ejaculated another stream of milky cum into my ass hole.It was a wonderful feeling to be used like a cum dump for my top. I loved every second of it and once she was.