While you wait for fresh answers from more qualified experts, you may be interested in another, comprehensive thread on the topic.

Was oral sex an invention of modern western Europe? For instance, did Native American/First Nations people practice oral sex that we know of? And what about East Asians, and other non Europeans? [NSFW] with multiple in-depth, sourced responses pertaining to multiple cultures and time periods.

Latin response by /u/sunagainstgold

South American response by /u/CommodoreCoCo

China by /u/lordtiandao

More China by /u/bigbluepanda