Belle Sterling loves to spy on her very sexy neighbors, Aden and Kevin, but she doesn't dare approach them to introduce herself. Until one night when they not only give her an erotic show, they hold a simple note against the window—"Come Over—#19." She does, and she has the night of her life. It soon becomes apparent to her that she's interested in a lot more than casual sex—but the two men have been in a relationship with each other for over a decade. Can they make room for her in their lives? That question becomes even more pressing when Kevin and Aden are forced to choose between professional advancement and Belle's best interests. They all must decide if what they share is merely searing sexual passion—or something far deeper.

It's Christmas time in this sequel to "The Zebra Wore Fishnets," and Belle is excited to be sharing it with her lovers, Kevin and Aden. It's their first Christmas together, and she wants everything to be perfect—the sort of special holiday she never had before. Aden has the same goal in mind, and convinces Belle that Kevin's perfect Christmas gift would be the chance to paint her portrait. But while the holiday starts out very promising, it's soon interrupted by unwelcome guests, past issues, and future problems.