Duallingus

When two people are each positioned at a girl's vagina.
Usually one of them is licking the clit while the other tongues her ass.

No common, almost like a unicorn, fucking amazing, but rare to find/

Jessalyn was surprised when her boyfriend and his best friend agreed to preform duallingus on her. It was sure to be a fun night. One tongue on her throbbing pussy and the other in her gaping asshole