It is in that context that gay "pig" masculinities have emerged and become visible in gay online platforms and pornography. At the same time, bareback porn has also become the fastest growing genre of gay porn and, today, only a very small minority of studios continue to make visible use of condoms. As a consequence, unprotected sex has been uncoupled from the spectre of AIDS and the number of gay men engaging in "barebacking"-that is, in intentional condomless anal sex-has risen exponentially, leading the practice to become mainstream. More recently, the confirmation of HAART's efficiency as Pre-Exposure Prophylaxis (PrEP) also means that those who are HIV-negative and having sex without condoms can prevent HIV infection by taking one pill a day. Not only did HAART make HIV infection no longer progress to AIDS but it also makes HIV-positive individuals uninfectious. The introduction of Highly-Active Antiretroviral Therapies (HAART) and viral load testing in 1996 made HIV infection a long-term chronic condition and led to a radical transformation in the lives, identities and sexual practices of gay men. Unlike hegemonic forms of Western masculinity, which have been shaped by a rejection of all things considered "feminine," including penetrability, gay "pigs" appear to become more "manly" the more penetrated and open to foreign bodily fluids they are. What is interesting about gay "pig" masculinities are the ways in which they appear to be predicated on a transgression of the boundaries of the male body, a blurring of inside and outside, self and other, through the pursuit of relentless penetrations and exchanges of bodily fluids. It is also a term that, alongside "bareback," has been appearing in increasing numbers of gay porn titles since the mid 1990s. or ) and often included, as a pig head or snout emoji, on usernames or profile text on gay hookup apps like Grindr, Scruff or Recon. It is used in the names of hookup websites directed at gay men into fetish or "extreme" sex (e.g. "Pig" is a term used by some gay men to self-define themselves in terms of their own sexual practices, which they regard as transgressive, pushing the limits of the body and of its integrity through relentless condomless penetrations, stretching of the rectal sphincter, and exchanges of all kinds of bodily fluids (sperm, urine, saliva, etc). It does so through a close critical engagement with representations of "pig" masculinities in contemporary gay pornography. This project theorises gay "pig" masculinities and their visual mediation, which emerged in the last two decades in tandem with the introduction of antiretroviral therapies for the management and prevention of HIV infection.