Looking to make some quick cash, Will decides to start teaching guitar lessons. However, after a fling with his student's mom, Emma, Andy speculates that Will is being paid for more than just his musical expertise. Elsewhere, Fiona finds herself suddenly accepted by the popular moms at school and Marcus prepares to perform at the upcoming school fundraiser.

To Will and Fiona's surprise, Shea accepts Marcus' proposal to be his girlfriend. However, Shea's idea of a boyfriend translates closer to a personal assistant than a companion. Elsewhere, Fiona attempts to be more spontaneous with Chris, while Will chaperones Marcus and Shea's frozen yogurt date.