Stories with the FFM Menage Theme
The FFM Genre consists of a three-way sexual experience between two women and one man, with both M/F and F/F sex. The presence of two women usually leads to a slightly more tender relationship, though not always. One of the women, typically inexperienced, is usually the focal point of the other two.
More than three sexual partners in the course of the story are classified Many Partners. Situations where a woman has sex with six or more partners at the same time are labelled Ganged in addition to Many Partners.
My Professor’s Wife

Calculus is difficult, even for an intelligent college sophomore like Emma. When a class tarnishes Emma’s perfect GPA, she retakes it over winter break to improve her marks. Her sexy redhead roommate, Faye, suggests she flirt for the grade.
Emma’s straight, but she’s had a crush on Faye since they met last year. Wanting to impress her roommate, she takes her naughty advice. Faye dresses her up in a scandalous outfit, and she heads to class. Nothing happens. Or so she thought.
The professor finds her later, but it’s not his idea - it’s his wife’s. Emma worked for Allison, the older blonde bombshell, her first semester, but she had no idea the woman was into her. She goes with the couple to a supposed dinner, but it seems Emma’s the only thing on the menu.
And once she steps over that line? Maybe her crush on Faye isn’t so crazy after all.
Caught Looking

Poor Marley has nothing to do on a Friday night. Not until midnight, when she hears something strange. Soon, she's watching from her bedroom window as the neighbor couple goes at it right in their backyard!
The next day, an innocent mistake throws her into the very same backyard. There she meets Ellen, a young woman who seems very happy to meet Marley. An invitation for a late-night swim turns into a forbidden first-time experience not even her wildest fantasies could have invented.
And that's just the first night.