She rolled over and invited me in — I slid fully into her with one push and was buried inside of her — I could feel her cervix up against the tip ...f my cock. I started to slowly move around, in, out, a twist sideways, mixing it up trying to impress my older sister in law. “Just fuck me hard” she said, so I did. I grabbed her ankles, spread her legs wide open and fucked her, I amazed myself how long I lasted. As she came her pussy clamped down on my cock like a vice, that did it, I forced my. I came in from being out with my friends and when I walked into the living room, Mark was there. I was a little shocked to see him and was told to sit down. I was getting a little scared, had Mark come clean? However my worries were misplaced. My parents and Mark explained that he had won a holiday for 1 week in Menorca. He had two tickets and claimed he didnt have anyone to go with and he was asking me. My parents were okay with it, maybe they wouldnt have if they had known what we had been. Kathy got a hold of me from behind and pulled me off Frank's shoulders. Frank continued to hold my legs and we both ended up underwater. When we were untangling ourselves, my hand came between his legs. I could tell he was excited and before moving away, I gave him a playful squeeze.Once we surfaced, Frank stared at me, his face showing surprise. I giggled, winked and pulled the bottoms of my suit out from between my butt cheeks. Moving closer to my cousin, I whispered, "You seem to like the. .. I mean, the way he looked at her like she was the beginning and the end of the universe. And she was the happiest I’d ever seen a person when she was around him. Pull out all the clichés you want about old men and young women; these two were crazy in love.“Tell me about it,” I said.“I got a message,” she answered. “He’s hiding and isn’t coming out until he’s sure Brenda is permanently out of the picture.” Maybe I should have told Angel Brenda was on the loose again but it didn’t cross my.