You've secretly always wanted to be a pet slave

Pet play? What's that? Hmm, yeah, that sounds kinky. Sounds kind of fun to play about with. Guess deep down you really want to do it yourself right? Well lucky you, now you can. I wish you were wearing a rubber sex slave suit. *your clothes shift, merging together and becoming black rubber, expanding to cover everything below the neck* Right, before I open my eyes and take a look, for my own benefit I wish that you'd have a svelt, attractive body. *you feel your body shifting, forming compact muscles, becoming a perfect, healthy body* Good, didnt want to risk you looking bad in that outfit. Now you want to be a pet right? Hmm, well first I wish that I'd be your 'owner'. Next...huh...not sure what animal to make you...well I'm feeling kind so I'll let you pick.