Whelp! I lied.
Had a look at the situation and decided there was no reason to split the week if I could complete this one by the end of it, which it turns out I could and did!
If it wasn't picked up on already, these two are from an old game called Rusty for the PC98, a japanese exclusive computer platform from the 90's. An awkward but fondly remembered Castlevania clone, the two character here are the main protagonist Rusty and her vampire antagonist Bloody Mary engaging in a battle of lips instead of whips.
Since vampires were involved, I created a cheeky alternate that infers looking at their reflections. It's honestly pretty half-assed. Rusty isn't a vampire in the game, but they were both animated on the same layer, so I couldn't isolate her. Oh well, I'll let y'all decide if the joke lands.