Looking for a hentai doujin (last time I checked was nhentai.net). It had a wife that look like Misuzu and a Shota that looks like Jun from Tomo-chan wa onna no ko. The Misuzu wife was tutoring the shota. But she initiated the sex. Tags are: cowgirl, ntr, blowjob. I can't remember the name.
While I couldn't find what you described, Tomo-chan Wa Onna No Ko's creator, Yanagida Fumita, was originally a hentai doujin author, so it wouldn't surprise me if it was made by him. While I couldn't find anything on N-Hentai or the e-hentai galleries, I didn't look that hard. If you're just into his art style/characters you should definitely give him a quick google.
