After weeks sharing a bed, Carrie feels comfortable actually sleeping with M. Big, yet mortified when she farts in bed, but really worried when he stops to want sex every night. It really hits her when he prefers to watch a boxing match to kissing, so she paints her apartment. Miranda tells Carrie to be herself and feels she's worse off not having had anyone for three months, but how often is normal? Samantha is horny for her hunky yoga instructor Siddharta, who claims to practice Bhramacharya, Tantric celibacy, since three years, yet still gets hard-ons. Charlotte tells Carrie to be happy her boyfriend Kevin didn't even kiss in three weeks, takes it as an aphrodisiac that he's Carrie's ex from three years ago and a sex maniac, but then learns he has given up sex to cure his former bad temper by Prozac, indeed even a hand-job has no result. Carrie's neighbors, who frequently have amazingly long, naked sex in front of the open window, are a spectacle for the envious quartet- and inspire Mr. Big...