Tentacles?
here are some yaoi ones: http://www.mangago.me/read-manga/aijin_incubus/ http://www.mangago.me/read-manga/uwasa_no_oujisama/ (last chapter) http://www.mangago.me/read-manga/yokubou_no_shizuku/ http://www.mangago.me/read-manga/hakase_to_neko/
Tentacles?