Jealousy rears its ugly head on "Desperate Housewives." Bree's new cookbook and entrepreneurial success has the women of Wisteria Lane feeling envious; Lynette's longing for a taste of her breadwinning days as an ad-exec leads her to lend an unsolicited hand to Bree's marketing plan; and MJ's drawing of a family portrait has left Mike feeling like he's not a presence in his son's life. Meanwhile, Gaby hatches a plan to have more sex with Carlos, Susan teaches a reluctant MJ how to fall, and Dave's motives for moving to the neighborhood continue to take shape.