Science Gallery London has commissioned dentist and artist Kuang-Yi Ku to run a project on the 'fourth function of the mouth' [besides aesthetics, pronunciation, and mastication]: its involvement in sex.

Ku's Fellatio Modification Project is part of Science Gallery London's autumn season 'Mouthy: into the orifice' which invites audiences to explore the hidden world inside the mouth.

The project focuses on medical and surgical oral modification practices for sexual pleasure enhancement, specifically for gay culture. To widen up the scope and reach of the project, Science Gallery London is organising a new Anilingus/Cunnilingus Modification workshop. King's College London dentistry students Carly Billing and Anisha Gupta extend Ku's experiments – use of saliva substitutes, tongue piercing, tongue splitting, prosthetic devices – to a wider range of sexual orientations and gender identities. They have created a prototype for a disposable wearable device to be used to increase sexual pleasure for women. They also want to raise awareness of effective protection methods for oral sex that do not prevent people from orgasm.

At a workshop which took place on 2 November, Ku led participants in creating oral sex toys based on dental retainers. At a talk held the same evening, Ku, Gupta and Billing presented The Fellatio and Cunnilingus/Anilingus Modification Projects and facilitated discussion about the themes they leverage, including the limits of bodily transformation in the pursuit of better oral sex.