Are these from a game? Every clip is less than half a minute, with no sound and precious little animation. I can't tell the genre of the original work, beyond "hentai" and there's not much even of that. It's like a film trailer cut by monkeys.

It's the year 21XX and there's been a global pandemic, according to the Japanese subtitles. A white-haired girl goes to a high-tech facility and undergoes experiments of unclear medical value. She sits on a moving dildo on something like a gym's vaulting horse. She eats dog food from a bowl while handcuffed. She wears a blindfold and a ball gag for her second dildo, then goes on a treadmill, then has a Van de Graaf generator applied to her sensitive parts.

No one else is ever seen. She only has sex with dildos, not people.

The two episodes are identical, except that in one she wears her cool black bodysuit throughout (although it gets damaged and has lots of big holes at the end). In the other, she gets nude early.