In body swap comedies,there is often a moment in which the protagonist ends up in an awkward romantic situation played for laughs. In 13 Going on 30, Jenna (Jennifer Garner) wakes up to find a half-bare guy walking around her apartment. She may be an adult in appearance, or but with her 13-year-old self occupying an older body,it becomes a case of avoiding this dude's horny advances. In 17 Again, Mike (Zac Efron) has to ward off his flirtatious teen daughter because she has no plan he's really her dad in his teenage form.
Source: blastr.com