At the start, James indicates to his boyfriend they open their connection to gender with other individuals. Sofia gradually opens into new adventures; this consists of a friendship with a dominatrix who goes by the title Severin (Lindsay Beamish). Sofia's inability to reach orgasm starts to cause conflict with Rob, who subsequently starts attending Shortbus with Sofia. James and Jamie meet a youthful ex-model and aspiring singer called Ceth (pronounced"Seth") and depicted by Jay Brannan) along with the three start a sexual relationship. Caleb fears the addition of Ceth at James and Jamie's relationship could break them up and consequently destroy his capacity to live vicariously through themso that he attends Shortbus, where he faces Ceth. Sofia starts to go daily into a spa using a sensory deprivation tank to meet up with Severin, and both start to have intense discussions. Severin starts to assist Sofia loosen up sexually; Sofia assists Severin attain a deeper human relationship than she'd experienced previously. 1 day in Shortbus, Severin discusses Sofia that the notion of giving up sex work to pursue her dream of becoming an artist. Both then have an unplanned sexual encounter, and once more Sofia is left unsatisfied. During the movie, James is observed creating a movie about himself and his connection. It ends up to be a suicide note. He tries to take his own life and can be rescued by Caleb, who requires assistance, but is too ashamed to wait for James for the aid to get there. He writes his telephone number and email address on James' face while he's unconscious. When James wakes at the hospital, he also predicts Caleb. James proceeds to Caleb's house to be consoled, but doesn't contact Jamie or even Ceth, neither of whom could understand why he would not call them come home. There is an interlocking trio of scenes demonstrating connections between the characters' psychological troubles and their sexual lifestyles. In Caleb's home, he and James have sexual activity, also James lets Caleb to permeate himsomething that he hasn't allowed anyone to perform before. Subsequently, in a stunning revelation, James is observed from the window of Caleb's flat by Jamie, who understands in that instant which James is alive and fine. Rob and Severin possess a paid experience where Rob requests to be flogged, something that he could not inquire Sofia to perform. As this grows, Severin loses hands and Rob attempts to ease her. Sofia seemingly has a fantasy of fighting through an overgrown, crazy forested area into some gentle seashore in which she attempts to attain orgasm . On neglecting, she cries, and at the real-world the lights go away throughout the town, apparently due to the collective and simultaneous frustration of these figures. The film ends with a tune by Justin Bond in Shortbus throughout the blackout. Sofia arrives and finds out Rob with Severin and after admitting him stays down with herself. Justin's song begins on a wistful note, however, as it progresses it gets more lively and optimistic as a result of the coming of the Hungry March Band. This is reflected in the activities and emotions of those celebrities. Jamie and James make out to the ground, and Ceth and Caleb begin to strike it off. Rob appears to locate a buddy, also Severin advances from nervous anxiety to joyful elation upon the coming of the band. Sofia participates in a threesome with a few she's seen a few times before and that seem to satisfy her requirement of"only starting to experiment sexually" (Nick and Leah, played with Jan Hilmer and Shanti Carson), and eventually achieves an orgasm, and the blackout affecting New York endings, as does the movie.