Searching for Likely Candidates

Robin was heterosexual, and a happily married woman. Any thoughts of infidelity within her marriage were non-existent. That was until her best friend, Quinn came over to dinner one evening when Robin's husband was away on business. She wanted to share Portrait of a Lady on Fire, a film set in 18th century France. It's about two women, Marianne a painter and Heloise a former nunObviously, the conversation they had during the movie, had to do with lesbianism.
Quinn, also married like Robin, confessed she was a bi-sexual. That piqued Robin's interest and soon Quinn convinced her to try a little experimentation while her husband was away. The evening for Robin was a blur, and Quinn gave her friend a crash course in every Sapphic delight she could think of. Needless to say, Robin was hooked on the entire experience, and the two best friends also became lovers.
Their romance continued for some time until Robin decided she needed do some exploration on her own. At first, she was at a loss where to start or how to go about finding a like-minded woman. The situation resolved itself with the appearance of Kai, another friend who came to Robin for exactly the advice Robin was now prepared to share and also resolve her dilemma. Following the laws of gravity, Robin and her two lovers were drawn together and expanded their horizons.
Horizons without any biological limits.