Between Marriages (Patreon)

So this commission takes place a few years before the story of Switch opens, (which is why Sylvia's hair is shorter.)  After her divorce to Casey's father, Sylvia went through a bit of a wild sexual bender for a couple of months, hooking up with anyone she so much as had tension with while she was married.  She had sex with many of her employees during this time, one of which was Beth Terry, her personal trainer.

Beth wasn't afraid to boss Sylvia around.  And as much as Sylvia loves being in charge, she can also enjoy being dominated by the right person. These two got together off and on until Beth introduced Sylvia to a weight trainer named Royce Becker.  After Sylvia remarried these two stopped being lovers, but they stayed in touch and are still friends to this day.