Ore no Ushiro ni Tatsu na!!
Loved the strong mature seme's getting taken over by you, and small uke. If you want smut, it's plentiful. But chapters need to be longer, too short for a multiple story one.
Kuroneko wa Shippo de Amaeru
I'm a big fan of the kuroneko series, and I liked this one too. But I guess the only cat was the real cat :)
Oita ga Sugiru wa Koneko-chan
It was a really sweet story between the two. Though they never actually said the age gap, it's 18 years :)
Kowairo ni Somaru
I thought it was good especially the voice fetish story. If you've ever had a sexy voice turn you on just by hearing it...MMMMhhoottt. It's chapters 1,2,and five are about the boy with priest/voice fetish. Chapter 3 was fun to see the annoying friend get his turn, and chapter 4 is school life if that's your thing.
Yume Musubi, Koi Musubi
Such a great realistic-ish story about a straight priest and the young boy who he's looked out for 10 years. Suddenly, now 17, the always straight young boy, realizes he wants the Priest who's looked after him. It's a great, open-minded, non-cliched story, about a tsundere priest and a straightforward boy who have to learn what they really want and how to get and keep it. Who's the seme might be questionable, lol, but It's cute, sweet, dramatic, and a good read.
Kimi ni Yori Nishi
I really liked the first story and I thought yay another onodera! Story is not fluffy, at all, but the first story of onodera comes to a future where you can see them together. The one story about lets be friends after broke up 10 years ago, is heavy too, and didn't end well. IMO
Kokoro (kanda neko)