A Perfect Wife

Jamie is at the end of his patience with his depressed, fat, miserable, unpleasant wife Kelly. Once at least charming and fun to be around, Kelly is at this point just a nasty and unpleasant sadsack. Which is nothing a man wants in a woman, even as Jamie tries his best to be supportive and encouraging. Trying to get her to at least be active, he encourages her to go for a walk with him, and it's as much of a mess as usual.
Kelly again feels insecure and lashes out about her weight and appearance, blaming Jamie for her own horrible mental illness she can't escape. But Jamie, in a burst of frustration and selfishness, flicks a coin into a fountain and wishes on it, "For Kelly to be perfect, in mind and body." And at first, he starts to feel guilty about his wish, but to his shock, it starts to come true. Kelly starts dropping weight, her smile returns, her depression lifts, and her body shapens into a sexually pleasing hourglass.
They go to a carnival for a fun date like old times -- and Jamie struggles to keep up with his bombshell, porn star bimbo wife!