cum swapping (uncountable)
- (vulgar, sexology, pornography) A practice (typically in pornography) in which a person passes semen from their mouth into another person's mouth.
2010, Gail Dines, Pornland: How Porn Has Hijacked Our Sexuality, Beacon Press, →ISBN, page 18:Another relatively new twist is "cum swapping," where a woman passes the semen into the mouth of another woman.
2017, Dave Holmes, Stuart J. Murray, Thomas Foth, Radical Sex Between Men: Assembling Desiring-Machines, Routledge, →ISBN, page 203:This might include giving a man a handjob and smearing his cum on his face, or it might involve forcing a man to lick his creampie out a woman's vagina or ass. Similar and related activities include snowballing and cum swapping, as well as women humiliating men through the use of other men's semen such as might take place in some cuckolding situations.
2020 June 14, Christine Stevens, “Girls Guide to Cum Swapping”, in Medium[1], archived from the original on 15 October 2020:But really, a threesome without cum swapping is... well, it’s like a tuna sandwich without the mayo. Sure it was fine, but something felt missing.