She grabbed her lube and put a couple squirts between her tits and asked me if I wanted to fuck them. Of course I did! As I slid inand out of tgem she...would lick the head and tell me harder.I couldn't take any more. So I stood up and suprise.....she twisted around with her head off the bed and said please fuck my throat! It took a little while but we finally got it right. So fucking hot to see her swallow all 7 inches. I was going crazy I could look anymore and was thinking about work so I. "Yeah, they're kinda gross, but I sorta think we might likethem okay when we grow up."I'm all mixed up. I don't like it.Sarah looks at me. "What do you really want, baby sister?"I think as hard as I can. "Want Mommy!" Okay, but first I wanna show you something." She pulls some folded paperout of her Barbie purse. She opens it. It has lots and lots of squiggleson it."What dat?" I say."Those are numbers and, I think, mathematical symbols and stuff."I think I knew this before. "What aw... um.... The next morning I made an emergency appointment with my dentist. When I arrived at the office, Doctor Davis managed to set aside enough time to fix it and even out my bite. Just before he finished, a hygienist opened the door and advised him that another patient with an emergency had just come in. Doctor Davis told me that he would have a senior hygienist finish up, and he left me sitting on the chair. When the door opened again, a girl in yellow honey colored scrubs came in. She had shoulder. She suddenly left her tits and began to handplay with my cock before opening her lips to take my cock deep into her mouth.“MMMMMMMMM” I gasped.She was now sucking hard on my cock and I could tell by her intensity that she was getting very wet in her pussy. She gave a little shiver as an orgasm swept over her.This brought me to the edge and I warned her I was about to cum as she never swallowed.She briefly withdrew my cock from her mouth. “No I want you to cum in my mouth” she said and started.