When browsing pixiv for the day found a picture that immediately made me think of y'all! It's got tentacles, transformation, parasitism, ad of course CTF. Warning is Non-consensual in that it's a critter takin' over a gals body, if that's something that you want to know.

Picture in Question:
http://www.pixiv.net/member_illust.php? … d=53351890

Artist Page(only 2 pics unfortunately):
http://www.pixiv.net/member.php?id=6730767

(hopefully i did the urls right i can never remember how to properly format text)