Malcolm in the Middle Season 4 Episode 10 If Boys Were Girls ( Air Date 2003-02-09 ) Genre Comedy category. Overview "After being rattled by a battle among the boys, a pregnant Lois ponders the consequences of raising another brawling kid. So she fantasizes that her unruly sons have morphed into well-behaved young daughters. Malcolm becomes Mallory, Reese is transformed into Renee and Dewey turns into Daisy.".