snowballing
sexual practice in which one person takes someone else's semen into his or her mouth and then passes it to the mouth of the other, usually through kissing
en-US/sˈnoʊˌbɔlɪŋ/
en-GB/ˈsnəʊbɔːlɪŋ/
sexual practice in which one person takes someone else's semen into his or her mouth and then passes it to the mouth of the other, usually through kissing