Tank Top, one of the legendary brothers of Coltarado State's ΦΚΠ chapter, runs into the recently retired diarchs of Equestria, Luna and Celestia. At first it seems like an easy pickup, but there may be other factors that make this situation less than perfect for the young stallion- namely, the age differential.
(My headcanon of retired Luna and Celestia's life post-Princesshood. Pls Season 9 Opener, No Cuccerino).