If you don´t mind "ugly" seme instead of uke then try Shiranai Kao chap.4 and Bannin chap.4! I don´t remember stories with really ugly or plain uke (other than the drawing style of the artist), sorry!
Maybe these could help ε=ε=(ノ≧∇≦)ノ
https://www.mangaupdates.com/showtopic.php?tid=38711
https://answers.yahoo.com/question/index?qid=20130307213325AAJuQlw
http://www.mangago.zone/read-manga/kaeru_no_prince_sama/
http://www.mangago.zone/read-manga/ubawareru_koto_marugoto_zenbu/ maybe just more of a shabby slob than actually ugly, but he's basically your creepy uncle in your grandma's basement
http://www.mangago.zone/read-manga/koi_o_suru_nara_kono_machi_de/ oh maybe this one too, just super plain
http://www.mangago.zone/read-manga/shitteru_yo/ haha found it this one he's scary
Porno Superstar ヾ(☆▽☆)
http://www.mangago.zone/read-manga/scarlet/tr/85093/page/180/ (3rd story. The link will take you right to the page)
http://www.mangago.zone/read-manga/akanai_tobira/
After reading mangas with cute or pretty ukes i thought it be interesting to have mangas with very plain ukes, not the ones with glasses and by taking them off they suddenly become cute or pretty, but where their face are actually very plain. Other characters might find the uke ugly, or just plain. The seme, I prefer it if he is hot, but its okay if he is ordinary. Thanks if you know any!!
p.s. i already read Aitsu no Daihonmei