Surpise 4-way, with a twist, part 3

Surpise 4-way, with a twist, part 3The two sisters began hanging out at our home more and more.The older TS ?sister?, Stephani (formerly Stephen) was jus 18 and the younger sister, Britni, one year younger. The dynamic around the house began to change as well. My wife found that she really wanted to take Britni as her young, ?daughter? and spend a lot of time with her. Britni was to always refer to my wife as ?Mommy?, not matter where they were or who was possibly listening. They would spend hours shopping, going out, lunches, etc., as well as a great deal of time together in our playroom in the basement. I was fine with that because we never would have had the experiences with these two beauties, had it not been for my wife. That left me and Stephani alone quite often as well. No matter what I was doing, if I was home, and Stephani nearby, she would want to practice giving me a blowjob or a hand job. Her goal was to get to be the best that there was! Every once in a while, I would want to fuck, so?..?Hey Stephani? I said ?Daddy needs to put His cock someplace special. If you don?t want too, then I?ll go see where Brit?..??No Daddy? Stephani said, ?I?m here for you.?She pulled her panties off and turned around. Stephanie always knew how I liked it? how I liked her.I had the lube at the ready and I basted her little hole, inside and out. I then pressed the tip of my cock against her anal ring and then reached around to tweak and twist her nipples. Causing searing pain elsewhere always seemed to make her not focus on the searing pain as her anal ring opened to accept my girth.?Oh Daddy? she gasped. ?I wish that I had a real pussy for you to enjoy""You do" I hissed to Stephani. "You DO have a pussy for Daddy to enjoy.."I would try and take it slowly until she got very excited and then increase the tempo. I found over time that I really enjoyed how tight she was and how her rectum completely seemed to surround my throbbing cock with her warmth. Daddy, please" she pleased "PLEASE cum inside of me."Her begging, although very exciting, always seemed to calm me and refocus my intentions: To fuck the daylights out of young Stephani.On one of these particular evenings, Stephani was whimpering her desires as My wife and Britni walked into the room and say arm in arm and began to watch."Hey" I protested. "Fucking is not a spectator sport... Not in this house, anyway."My wife whispered something into Britni's ear and she smiled, jumped up and ran into the other room. She returned a few minutes later carrying a strap-on harness with a rather thick dildo securely attached. She handed it to my wife, who stepped into the harness. "On the floor beside your sister" ordered my wife, as she made the final adjustments.Britni got on all fours right beside her ts sister."Interested in a little 'this one, then that one' trade?" asked my wife with her devilish grin."You bet" I said, with my own sinister laugh.For the next 30 minutes, my wife and I would butt-fuck one, then she and I would pull out, slide over and fuck the other sister.