I personally like stories with huge age difference between lovers, more so if the uke is older,, the older the better, the juicier
The mangas here include :
Older Uke
Younger seme
Trigger Warning
May contain--
Incest
Bara
Bestiality
Threesome
Weird Stuff
Another "Older Uke" list
http://www.mangago.me/home/mangalist/594788/Other age-gap list
http://www.mangago.me/home/mangalist/530921/ 
