hmmmm...(maybe ther're more slender than skinny)
http://www.mangago.zone/read-manga/love_me_hard/
http://www.mangago.zone/read-manga/saezuru_tori_wa_habatakanai/
http://www.mangago.zone/read-manga/yatamomo/ (he is skinny)
http://www.mangago.zone/read-manga/kare_no_shousou_to_koi_ni_tsuite/
http://www.mangago.zone/read-manga/ropeman/
http://www.mangago.zone/read-manga/kimi_no_karada_ni_koishiteru/ (1-2)
the mangas with those kind of ukes take the manga's hotness meter one step higher
http://www.mangago.zone/read-manga/the_last_lover/
http://www.mangago.zone/read-manga/ai_towa_yoru_ni_kizuku_mono/ http://www.mangago.zone/read-manga/yume_no_you_na_hanashi/ (2nd couple uke)
more here http://www.mangago.zone/people/tag/49344/lewd+uke/?page=1
i want some perverted skinny uke!!...who's always hunger for cocks sperms and sex!