Caroline is the patient that my nurse Kim and I were hesitant to tell you about – the one whose mother had us come to their home so that I could "treat" her daughter's somewhat unusual needs – and desires. WARNING: This story contains rape fantasies and (fully consensual) forced sex. If you don't like that sort of thing, then don't read this story.
Little 13-year sister was in a dilemma, her parents wanted to send her to New York to her older brother while they went on a one-month vacation cruise. The problem was that she would not be able to have sex for a whole month - or so she thought. She finds out that she learns and has more sex here than she ever thought she could handle, especially from her well hung brother
A younger sister and her friend find her brother lying on a weights bench with his hand stuck under the barbel. They'll free him, but not until they've had some fun.
Siblings make a bet over their high school grades, if he wins she jacks him off. He wins but things turn out drastically different... good, but different.