Why would I want my step-sister to go on holiday with me?” I laughed, thinking it had to be a joke.“I was only saying. Keep your shirt on, Sean,�... she replied, clearly a bit put out nevertheless.“Sorry, Pen,” I answered earnestly as she really did look annoyed.After an hour in which she went over what her daughter, Kirsty, wanted for her birthday Penny left to pick up her youngest from school, which left me at home alone again and some peace. We do get on, Penny and I, but I also like my peace.. "You really prepared for this."I mumbled, "Mhmhmm."She giggled. "Good, because tonight's gonna get a little crazy." She moved forward and got on her knees. I felt her press the tip of the dildo against my waiting hole. I let out a long breath, and all at once, Anna thrust into me. I gasped. I didn't expect her to be so forceful. She immediately went to work and started to peg me with the strap-on. I was completely helpless to do anything but moan. I heard her laugh and make dirty comments to. When I turned my head slightly and rubbed my cheek against her, she said " Oh that feels so good. I would let you suck on it, but we need your mouth open right now." Maybe not the sort of remark that you would expect from a Dentist, but in the past, I was more than just another patient. We had met in the County Clerk's office, both of us registering the deeds of our newly acquired houses which were included in our divorce settlements. When we realized that we were both there for the same. Gina smirked inwardly, Sharon had no idea how thoroughly hooked Matt was on Gina's mouth. She must have gone down on Matt at least once a day while Sharon was gone. For his part Matt had gone down on her so thoroughly that she didn't even both to try and count the number of orgasms she'd enjoyed - and she planned to enjoy more, many more.Even better Sharon had revealed a bi-sexual side due to the threesome she'd had while away. Gina had experimented with women in the past and Gina had every.