Occidentals Spit on Prostitutes

In occidental countries there are many prostitutes. The customers set out liquor and summon the prostitutes and remove their lower garments, then surround them and spit saliva on their vulvas, but don't have sex with them. When they are finished spitting they pay them, and call it "everyone's pocket money".

From What The Master Did Not Speak of 子不語 by Yuan Mei 袁枚 (1716-1798). The original item in its entirety:

紅毛國人吐妓
紅毛國多妓。嫖客置酒召妓，剝其下衣，環聚而吐口沫於其陰，不與交媾也。吐畢放賞，號「眾兜錢」。