that trope i had a big interest with and if you like role reversal stuffs you might like a few of my lists
anyway younger seme http://www.mangago.me/home/mangalist/43695/
uke-like seme http://www.mangago.me/home/people/49344/list/
Age gap with an older bottom you mean? u:
Here are some you might like:
http://www.mangago.me/read-manga/himono_tokodoki_shanairen_ai/
^First couple
http://www.mangago.me/read-manga/mujaki_na_wanko_to_nekokaburi/
^this couple is also featured in the spin-off below
http://www.mangago.me/read-manga/boku_no_omawarisan/
http://www.mangago.me/read-manga/toshishita_kareshi_ni_hirowaremashita/
^not exactly old old but older than the top
http://www.mangago.me/read-manga/on_doorstep/
http://www.mangago.me/read-manga/kitto_oujisama_ga_nante/
http://www.mangago.me/read-manga/young_bad_education/
^ imo the sequel is waaaay better
http://www.mangago.me/read-manga/young_good_boyfriend/
Does anyone have recommendations for BL manga similar to "Oyaji Hiroimashita" ( http://www.mangago.me/read-manga/oyaji_hiroimashita/)?
Doesn't have to be an age gap couple, just BL with some role reversal. And cute middle aged men. (Sorry you had to read that)