Merry Christmas! A girl in cat ears, a bell and half a yellow outfit receives a customer's order. She shoots off supernaturally through the sky and has sex.

Happy New Year! She's now wearing half a Santa outfit. (Eh?) Another order! More sex.

It's a bit strange. No dialogue. Occasionally, in the sky is something I can't quite process. It's either a spaceship in front of a moon or a planet, or else it's a camouflaged Death Star from Star Wars.

It stars Maho Nishizumi, Miho's older sister from Girls und Panzer. The song's one of those loud, thumpy dance tracks that's also mysteriously slow, but even so Maho's barely dancing at all. Eventually she stops bothering and instead just has sex.

As an aside, I was asked how these hentai music videos with characters from popular franchises manage not to get sued. That's a good question! Maybe it's just random people with MMD software doing stuff on the internet, in which case there's no profit involved and trying to sue them would be like using a nuclear bomb on cockroaches...

The song is Benny Benassi's Satisfaction. The girl looks as if she might be from KanColle, but I'm guessing. She doesn't have sex, except possibly with someone invisible, but she's only wearing long gloves, stockings and a hat.

I'm reluctant to call what she does dancing. She moves on the spot a bit.

Kazuki-kun goes on a tour with three gyaru with titanic cleavage. He hasn't been on the bus for thirty seconds before one of them puts her hand on his crotch. There's no plot, but the girls all get their own characterisation.

It's a mobile phone game, so the screen's tall and narrow. It also has a ton of Japanese text and only occasionally some animation.

It has supernatural elements, e.g. what I presume is a succubus.