شرتباس (انگلیسی: Shortbus) فیلمی در ژانر کمدی-درام، شهوانی و رمانتیک به کارگردانی جان کامرون میچل است که در سال ۲۰۰۶ منتشر شد. از بازیگران آن میتوان به سوک-یین لی، پال داوسون، جان کامرون میچل، میریام شر و درتی مارتینی اشاره کرد.
فیلم شرتباس در مورد زوجی است که به پیشنهاد همسرش، با دوست پسر سابقش که او در یک سالن اجتماعی / هنری / جنسی هفتگی در بروکلین به نام “Shortbus” شرکت کند ، که توسط جاستین باند برگزار می شود. صوفیا به آرامی تجربه های جدیدی مثل سکس دهانی، آمیزش جنسی از کون را یاد می گیرد. ناتوانی صوفیا در رسیدن به ارگاسم باعث درگیری با راب می شود ، وی به نوبه خود حضور در Shortbus با صوفیه را آغاز می کند. صوفیا گاهی بدون حضور همسرش با دوست پسرش سکس دهانی می کند. او دوست دارد کیر را لیس بزند تا تمام آب کیرش را در دهانش خالی کند.
Set in contemporary New York City, Shortbus revolves around Sofia Lin (Sook-Yin Lee), who is married to the handsome but unambitious and slightly dim-witted Rob (Raphael Barker). She works as a couples counselor/sex therapist. She comes into contact with a couple: A slightly egotistical former child star Jamie (PJ DeBoy) and former prostitute James (Paul Dawson), the film’s other lead character. At the outset, James suggests to his boyfriend that they open up their relationship to sex with others. During their first consultation, Sofia snaps, slaps Jamie, and then apologetically reveals her “pre-orgasmic” status. The couple suggests she attend a weekly social/artistic/sexual salon in Brooklyn called “Shortbus,” which is hosted by drag artist Justin Bond (playing hirself). Sofia slowly opens up to new experiences; this includes a friendship with a dominatrix who goes by the name Severin (Lindsay Beamish). Sofia’s inability to achieve orgasm begins to cause conflict with Rob, who in turn begins attending Shortbus with Sofia.
James and Jamie meet a young ex-model and aspiring singer named Ceth (pronounced “Seth”) and portrayed by Jay Brannan) and the three begin a sexual relationship. Meanwhile, James and Jamie’s life is being closely watched by their across-the-street stalker neighbor, Caleb (Peter Stickles). Caleb fears the inclusion of Ceth in James and Jamie’s relationship might break them up and thus destroy his ability to live vicariously through them, so he attends Shortbus, where he confronts Ceth. Sofia begins to go daily to a spa with a sensory deprivation tank to meet with Severin, and the two begin to have intense conversations. Severin begins to help Sofia loosen up sexually; Sofia helps Severin achieve a deeper human connection than she had experienced before. One evening at Shortbus, Severin discusses with Sofia the idea of giving up sex work to pursue her dream of being an artist. The two then have an unplanned sexual experience, and once again Sofia is left unsatisfied.
Throughout the film, James is seen making a film about himself and his relationship. It turns out to be a suicide note. He attempts to take his own life and is rescued by Caleb, who calls for help, but is too embarrassed to wait with James for the help to arrive. He writes his phone number and email address on James’ face while he is unconscious. When James wakes in the hospital, he calls Caleb. James goes to Caleb’s home to be consoled, but does not contact Jamie or Ceth, neither of whom can understand why he wouldn’t call them or come home.