I have 2 indoor cats and they just don't want to accept Foxy my 16 week old pup.

Cleo isn't as bad, but still isn't having any of it. Bailey is either scared of her or I dunno. He hisses really bad (he never hisses normally).

My cats are 2 years old and I have never heard Bailey hiss once in the 2 years I have had them, until I got Foxy.

I have to keep them apart (I know I shouldn't because they are going to have to get used to each other at some point). But I am literally terrified of what damage my cats could cause to Foxy because they don't like her or are scared of her. They hiss, but as soon as they do that I pick Foxy up and take her away. What would happen if I was to just leave them to get on with it? I dread to even think of the damage they could cause. After all, Cleo is 12+ lbs and Bailey 18+lbs and my puppy is 2.5lbs... hmm (

Foxy isn't frightened of them at all! She just wants to run upto them and play! which I can't and wont let happen because as soon as she goes charging towards them they freak out. If I was to let her go upto them like she wants to what on earth would happen? At the moment life is difficult in my house because of this. Either constantly keeping an eye on the cats or the dog. No one can have complete free run and it's just a nightmare to be honest. Needs to be sorted SOON.