You did it! We figured this one out! It is a truth universally acknowledged (by me for certain) that the Bitchery pretty much knows everything, and really, it's true. Scroll down to see the solution for this HaBO - and many thanks!

This HaBO is from Amelia in the podcast Patreon discord:
This was a 1980s/90s vintage romance with a heroine undercover as a high school student a la Never Been Kissed???
The hero is a teacher who thinks she’s 17 for most of the book.
It’s a yikes but I’m in a Fast Times at Ridgemont High cultural deep dive and it’s driving me insane trying to find when this came out.
Sending up the bat signal to HaBO!



Oh, I know this one! Or at least I know one that fits. “Outside In” by Beverly Sommers. She’s trying to solve her sister’s death, so she pretends to be a HS student. There’s a lot of comedy in it, and then it suddenly turns into a thriller.
From Goodreads… “At twenty-seven, Jill was masquerading as a high-school senior to find the truth about her sister’s death.
She was also causing quite a commotion.
Snubbing the cheerleaders.
Hanging out with the jocks.
And giving her civics teacher the fright of his life.
Poor Doug Lacayo had no way of knowing that his provocative, attractive pupil
wasn’t a teenager.
Jill meant to tell Doug–but she couldn’t resist having a little fun with him first.”
If that’s the one, you should check out the page on Amazon to see the paperback cover (Silhouette Sensation), which is giving lots of Sam from CHEERS vibes here
omg that cover! You guys are AMAZING!
@Amanda ~ just a note that the HABO from March 10 can be marked as solved.
@Kareni: Thanks! The post has been updated.
@Amanda ~ thank you kindly.
@Amelia ~ yay for having found your book!