Bunny Love

So... my 9 yr old male JRT, who I've had for about a year (adopted) has began attempting to make sweet love to a stuffed rabbit that he got for christmas. We have a 7 yr old female, who he has live with since she was a pup and he doesn't seem interested in her at all... just the bunny.

Anyone has any clues about this unexpected behavior? I have never seen him do anything like this at all....

Yeah, he can't dominate her, so he dominates the bunny. It's a dominance thing, not a sexual thing.