Peter's jealousy reaches new heights when he accompanies Lois to the gynecologist. As the doctor prepares to examine Lois, Peter refuses to let him near her. Later, while shopping, Lois runs into an ex-boyfriend, Ross Fishman, who innocently asks her out for coffee. Fearful of Peter over-reacting, Lois sneaks off to meet Ross. At the same time, Joe picks up Peter for a joyride in his new high-