Hmm... well, that seems like that's about all the fun we can have with it like that right now. I guess you should go ahead and let go. Put your hands on your head and let that penis do as it pleases. Hopefully it'll do what you want and get itself out of that cage.
It might be a little too fond of its prison, though. That happens sometimes. I mean, if you like dungeons and dominatrixes, who's to say you'd choose to be let out of your cage?