The contestants brace themselves for a challenge in the sin of Lust. Telenovela romantic leads Christian de la Fuente and his wife Angelica Castro guest star to teach them the art of romantic lovemaking for the camera. To prepare, the group warms up with yoga. The group is surprised when the instructors strip and ask the contestants to do their yoga in the buff. Sparks fly when several contestants strip completely naked. Tensions mount as the scenes are assigned and include a three-way scene, a lesbian scene and a gay love scene. One contestant breaks down and threatens to leave la Casa.