Posting the new Augustine artwork reminded me of some femdom fiction that follows similar themes. Lots of predicaments, heavy bondage, enemas and invasive procedures, all inflicted by faux-caring sadistic dommes.
The first is by Tyjord, who has a number of stories on the BDSM Library site. Searching around also led me to a couple of his stories at The Fet Library, which look like they’re slightly more recent.
The second is by switchbent. I originally stumbled across Playdate on the Utopia stories site, but it looks like he’s also got another one at The Fet Library called Go With the Flow.
I don’t think any of the stories will win prizes for realistic scenarios, but if you’re into the themes and like your femdom fiction extreme, then I think they’re worth checking out.
This enema themed artwork is by the artist sometimes known as the German.