Try Ikusa Otome Suvia and Soukou Kijo Iris, old hentai but never fail to fix my monster/tentacle fetish. Missed those days when they produce high quality hentai like this.
Please help to identify this video source, http://xhamster.com/movies/1836516/jap_181.html?embed=title&from=player_title&t=270.159&prs=9f7dc02095266c42d4e177b42d440c33:masutabe.info:571a7ed1:e10, thanks!