Masochist uke?

http://www.mangago.zone/read-manga/kawaisa_amatte_nanika_ga_hyakubai/
http://www.mangago.zone/read-manga/kichiku_megane/
http://www.mangago.zone/read-manga/yume_no_you_na_hanashi/
http://www.mangago.zone/read-manga/caste_heaven/
http://www.mangago.zone/read-manga/sasayaku_no_wa_sono_yubi/
http://www.mangago.zone/read-manga/you_re_my_loveprize_in_viewfinder/ (I think Asami counts, not sure tho)
http://www.mangago.zone/read-manga/koibito_kijunchi/ (Seme is mean, but I don't know if you'd call him sadistic)
http://www.mangago.zone/read-manga/kalimeris_porno/
http://www.mangago.zone/read-manga/messiah_no_yakubi/ (this has two other oneshots)
http://www.mangago.zone/read-manga/sono_kuchibiru_ni_yoru_no_tsuyu/
http://www.mangago.zone/read-manga/bi_no_isu/
http://www.mangago.zone/read-manga/rakuen_no_ori/
http://www.mangago.zone/read-manga/royal_servant/

not sure if this is what you're looking for, it's kinda fluffy, but they're definitely super m and super s
http://www.mangago.zone/read-manga/do_do_do_s_kyuu_kareshi/

Hua Hua You Long.

thank you!!

thank you!!

already read it but still, thank you!