Emetophilia is a paraphilia in which an individual is sexually aroused by puking or observing others vomit. This is commonly referred to as a vomit fetish or puke fetish. Some emetophiles put their perversion of choice into practice by actually doing the technicolour yawn, often on a sexual partner.
Vomiting as a sex act is sometimes called a Roman shower, after the commonly held but mistaken belief that regurgitating food was an integral part of Roman feasts. In this urban myth ancient Romans are alleged to have thrown up after binge eating so that they could return to their feasts to eat more!
Some emetophiles find the act of chundering arousing; for them, the sequence of “spasm, ejaculation, relief” in retching is erotically charged. Other emetophiles are aroused by seeing, hearing, and/or smelling others heaving up their guts.
Some puke fetish enthusiasts desire a partner who will barf on them, while others wish to induce hurling in a partner, or even to force them to throw up. Wanting to be vomited on may be related to a desire to be dominated, while wanting to make someone else puke may stem from a desire to dominate the partner and it can be seen as a form of erotic humiliation. Emetophiles may have any combination of these desires at any time.