Geriatric rom-coms may not be especially “in,” but when you can get legends of the screen like Martin Sheen, Lily Tomlin, Jane Fonda, and Sam Waterston together for one, it seems like a good bet to make. Netflix, however, seems to not believe in the traditional rom-com formula.

THR reports that they’ve added Waterston to complete the ensemble of the show Grace and Frankie, which revolves around rivals (Tomlin and Fonda) who discover that their respective husbands (Sheen and Waterston) are having an affair with each other and will be getting married. The 13-episode comedy will debut sometime in 2015.

Marta Kauffman (co-creator of Friends) and Howard J. Morris (Home Improvement) co-created and wrote the show, and will continue Netflix’s push into the original series market.

While this is not coming from an official Las Vegas casino, the over/under for Viagra jokes in the first episode has been set at 13.5.

[via THR]