Topic: Watashi to Sensei
Young bisexual falls in love with older lesbian, Belial-style. Expect boobs and dicks in places they don't belong. Imgur isn't letting me upload, so have a link: https://e-hentai.org/g/788365/61c5e4ef6e/
The artist has done other work in this vein, but none of it's translated into English as far as I can tell.
Edit: huh. Flickerr showed up in the comments back in 2015. I don't recall this getting posted here, though.