Twin Love - Parts 1, 2, & 3 - Sex Stories

Twin Love - Parts 1, 2, & 3

Introduction: As non-identical twins, Mark Goldman and his s****r Libby had always been close. They played together quite harmoniously, to the delight of their parents. One night they grew even closer... Part 1 A teenager babysitter named Sheila was watching the kindergarten-aged twins while their parents went to see a concert. Mark and Libby were upstairs watching a movie when Sheila quietly let her boyfriend Steve in the backdoor. Sheila and Steve were both s*******n -- they were typical horny teenagers who'd been fucking non-stop for weeks now. Sheila was almost immediately naked and bouncing up and down on Steve's 7&#034 cock as he sat on the Goldmans' living room couch. The teen babysitter's B cup tits were bouncing around in Steve's face -- he couldn't help but groan as he sucked her tiny, hard little nipples while she rode his cock. Sheila groaned too, then she gasped when she heard a creaking noise and looked up to see the twins watching them from the stairs! Steve turned around and grunted with surprise. Sheila stayed still atop his raging prick, his cockhead buried in her womb. The twins were wide-eyed, ogling Sheila's pert tits and lithe, tan, nude body. They couldn't see her neatly trimmed patch of pubic hair or Steve's cock, but the twins were certainly intrigued by the groaning and movement and Sheila's naked body. Neither of them knew what Sheila was doing, but it looked fun! &#034Oh, uh, hi k**s, this is my uh, my b*****r Steve. I haven't seen him in awhile, ...

... so I was just giving him a really big hug,&#034 stammered Sheila, still sitting on Steve's cock. His prick didn't show any sign of deflating. &#034Go ahead and go back up to your bedroom, I'll be up to check on you k**s soon, okay?&#034 Sheila continued riding Steve's cock to climax once the c***dren were out of sight, letting Steve sperm up inside her. Libby and Mark went back upstairs to the bedroom they shared, but they didn't resume watching the movie. They laid next to each other in bed, their young minds trying to comprehend what they babysitter and her &#034b*****r&#034 had been doing down in the living room. Libby felt a curious tingling between her legs -- her pussy was aroused, though she didn't even know it. It seemed like Sheila really loved her b*****r. Mark and Libby loved each other a lot, too... Later that night, after their parents came home and checked on them and then retired to their own bedroom, Mark turned to Libby in the moonlight. They were laying on Mark's bed down on the bottom bunk; often they fell asl**p together on the same bed. Libby had on a thin pink nightgown with pink cotton panties. Her nipples were hard in the chill of the night. Neither of them had been able to fall asl**p. Mark had been laying there, staring at the shadowy lumps that were his s****r's tiny, hard nipples poking through her nightgown in the moonlight. He was thinking about Sheila's breasts, his small cock twinging occasionally. Would his s****r's look like that someday? All ...