About pets))
Do you use a word "fawning" or also "fawn up, fawn about" about dogs? Or is there another word)? And what do you say about cats then (pettable, affectionate, sweet...)?

Question

About pets))
Do you use a word "fawning" or also "fawn up, fawn about" about dogs? Or is there another word)? And what do you say  about cats then (pettable, affectionate, sweet...)?

Answer

"To fawn" (over someone/something) means to give excess attention to it, in order to please. I think you've chosen an appropriate verb.

Interestingly, this dictionary definition uses a dog's behaviour as an example:

http://www.thefreedictionary.com/fawning

Answer

Cuddly, cute, sweet, snuggle/snuggling.  
Fawn means a baby deer.
Snuggling up to you.