This really was a 'biological clock' kind of decision. Donnie and Deirdre were thirty-seven at the time and we just didn't want to push our luck by wa...iting any longer.Besides which, it may be a bit crass of me, but I really did want to see if we could get pregnant a second time as a kind of experiment. None of the twins of any family had ever gotten pregnant twice, to the best of our knowledge. And our knowledge is the knowledge of the entire institute, such as it is.It's kind of a key to the. Again checking in the mirror I remember thinking, "Well, well, Steven certainly knows my size" and giggling remembering previous visits.I took off my skirt and thong quickly but took more time rolling my nylons down each leg in anticipation of my hands being replaced by his.I put on the new string over my clean-shaven mound noting some moistening along the lips, poured myself a glass of champagne, and checked out the effect of the lingerie in the mirror. I felt very sexy - the buzz I was. She has been teasing me for five years and I couldn't take it anymore. My a****l instincts kicked in and all she was to me now was a hot piece ass with a pussy that I had to have. She tried to fight me off but I was to strong for her. I put all my weight on her to keep her pushed over her the counter, I grabbed her wrist and pinned them down above her head. I licked her legs open so I could have access to her cunt. "I'm your sister you sick bastard!", She yelled. I was to far gone to care what. "I think it was when you asked me to wear anightgown. I suddenly realized that it is easy for me to impersonateEllen, and that you don't hate me for it."CONDITION METDuring the next week Earl began again to dream about Ellen and moanabout her in his sleep. The old routine whereby Allan had been drawninto helping release Earl's sexual tension was repeated several timeswithout any evidence that Earl himself realized what was happening.Except for that disturbing element Allan was filling his.