Two and a Half Men Season 4 Episode 7

A pregnant woman turning up at the beach-house causes panic with the Harper brothers till they learn it's Bertha's daughter Naomi. To Charlie's bewilderment Alan finds her condition sexually irresistible. Before he knows it, Charlie's sympathetic words for the disappointed grandma-to-be about her brightest (imagine the rest!) get him enlisted to go make married dad-to-be Ronald Wiedermeier chip in, in nasty drug lab-infested rat-hole Rancho Pacoima. He pays $5,000 to keep it from his wife Darlene, but when they are back home, where Naomi had started kissing Alan...