The cover art confuses me. What do those letters mean?

11261519
When aren't you confused?

11261519
Oh, it’s just a warning of what this story contains.

11261519

Time to scar your life. :3. scat is poop... which is the nasty watersport kink.

Come to think of it I wonder what's worse scat fiction or Mary Sue alicorn oc.

11261831

poop... which is the nasty watersport kink.

if you're peeing feces you should see a doctor

11261519
F/ffm implies the story contains two woman-teengirl pairings and a woman-teenboy pairing. I have no idea what OV and AV stand for; I don't think they're standard but I may be incorrect.

11262279
You are in fact incorrect.

These are all fetish tags. F/ffm implies one female in a dominant role, and two females and a male in submissive roles. OV stands for Oral Vore. AV stands for Anal Vore.

11262321
I've seen these tags used on fiction for more than twenty years (and have posted fiction for that long as well), so they must have changed usage if casing doesn't imply age anymore. It used to be F meant adult female, f meant teen female (underage but post-pubescent), and g meant young girl; as with M, m, and b. I've never seen OV and AV before. It seems odd to abbreviate "vore" as "OV", but ymmv.