Several people have arrived through search engines searching for Maria Ozawa tentacle sex so here is something hardcore. Several (censored, as is the case with Japanese releases) images from the live action movie Tentacle Swallowing Ecstasy / 触獣丸呑みアクメ 小澤マリア released just recently (by SOD, SDMS-681) in which Maria gets attacked by a monster with tentacles. Obviously not real. :D But quite well made.
Sorry about the slightly bad compression of the images, the DVD itself is obviously of better quality, and is available at Amazon.co.jp (only for those in Japan, unless lucky with marketplace), J-List or Squareplus.