The recent Crunchy Roll web series Wonder Momo has a tentacle scene in episode 3 at about the 5:20 mark.
http://www.crunchyroll.com/wonder-momo/ ... ide-650217" onclick="window.open(this.href);return false;
The Wonder Momo web comics may also be leading up to kidnapping soon, but it's hard to tell if that's the direction they're going. I'd link it but shiftylook.com seems to be down right now.
Wonder Momo ep. 3
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