Sorry, didn't see this when it was posted. I have three JAV vids containing this exact thing. One is MIAD852.
Two others:
MSTD-003 - Miki Sonuhara is hypnotised to act like a dog, among other things. There is a sub file available on subcat for this.
JUL-657 - Isshiki Moko is hypnotized to act like a dog. Also a sub file is available.
In both, the dog thing is only one scene, unlike in MIAD852.
If anyone has a .srt for MIAD852, please let me know where to find it.