Essentials for an aspiring adult starlet, twitter account and lap dog.
 

Not so much the twitter account, that's essential for marketing.

but...

I swear, every new female adult model comes locked and stocked with a lap dog. A lot of the dogs could be classified in the Toy Group of dogs.
Toy Group: http://en.wikipedia.org/wiki/Toy_Group

Do they travel around everywhere with it? What's the deal?

Can any modern producers that shoot some of the more popular girls explain, please? :)