S2, E8: Alan's expectations for a first date with Nancy (Kelley West), a woman he met while shopping for groceries, are far exceeded when she introduces him to a world of sex he never knew existed. Charlie is happy that his brother is getting to experience the kind of sex life he's always enjoyed, but he's not thrilled to take responsibility for Jake while Alan has his every fantasy fulfilled. When Alan starts thinking he loves this woman, Charlie realizes he must take action.