$Spoilers$ Technically a Kiss

Well, think about it.
Nnoitra fired a cero from his mouth using his tongue, Frenching it up ooh-la-la XD, and then Nel Swallowed and spit it out right in his face XD
I bet Nnoitra couldn't resist pointing that out.

Nnoitra & Nel of BLEACH (c) Kubo Tite