any yaoi where the uke is the pervert one, like he is the one who's horny all the time and...

http://www.mangago.zone/read-manga/honto_yajuu/

http://www.mangago.zone/read-manga/yatamomo/
http://www.mangago.zone/read-manga/nakasenaide_ne/
http://www.mangago.zone/read-manga/kiken_na_otonarisan/

These might be kinda what ur looking for.
http://www.mangago.zone/read-manga/gosan_no_heart/
http://www.mangago.zone/read-manga/kuchizuke_wa_uso_no_aji/
http://www.mangago.zone/read-manga/sex_therapist/
http://www.mangago.zone/read-manga/kaihatsu_muramura_mode/
http://www.mangago.zone/read-manga/yondaime_ooyamato_tatsuyuki/
http://www.mangago.zone/read-manga/kare_no_shousou_to_koi_ni_tsuite/
http://www.mangago.zone/read-manga/sex_friends/
http://www.mangago.zone/read-manga/do_do_do_s_kyuu_kareshi/

Hope I helped (▰˘◡˘▰)