We laid down for a quick nap. Got up, it had been about 3 hours since inserting the bigger plug. "Ok, time to move up!" She laid on the bed. Spread he... cheeks. I fingered her pussy a bit to get her wet. I lubed up the plug and began working it into her. Finally it popped in! "How you doing?" "Wow!, I didn't think it would fit!" "But I think I like the feeling!" "Lay there a bit." I laid next to her caressing her legs and spanking her cheeks. We got up and I had her wash the truck with her sun. “Now it’s just you and me Mary-Kate! It’s our turn to put on a show!” I announced.I turned Mary-Kate so her back was to me. I lifted her up slightly; freeing my cock from beneath her ass. My cock immediately sprang to attention eager for Mary-Kat’s pussy. I slowly lowered Mary-Kate towards my waiting cock. I slid her now pouting pussy lips towards my rock hard cock.I felt my cock find its target. The head of my dick was soon lodged within Mary-Kate’s virginal opening. Mary-Kate gasped and. She was so wet, even before I got started she had cum dripping down her legs. I used some of her cum to lube up my thumb and was pushing that in and out of her ass while I fucked her. She wasn't protesting at all, so just went ahead and pulled out of her pussy and started fucking her ass instead. Some uncomfortable grunts escaped her as I did it, but she didn't tell me to stop. It seemed like fair retribution given what she just did and I think we both knew it. Her ass was significantly. On the other hand, if they decided to go forward, well ... My cock got hard just thinking about it. I considered rubbing one out, but decided against it. Sleep came quickly.When I woke the next morning, I peeked into Carrie’s room, and saw the girls sleeping in various positions all around the room.I left them and went to the kitchen for breakfast. I was at the table eating when Carrie came walking quietly down the hall. She got a cup of coffee, doctored it up, and sat at the table next to me..