Plot: Rebecca wants to take her relationship to the next level with a seemingly normal guy, but reconsiders when she discovers a giant tattoo of a scantily-clad woman on his chest. Meanwhile, Perry's struggle to fire his enthusiastic but lousy assistant, Erin -- who incorrectly anticipates his every need -- lands him in an unwanted relationship with her; and Shawn is reluctant to watch Lisa's coworker's cute dog until he realizes what a great chick magnet the little guy is