Double William

As I pulled into the driveway I got a surprise, William and his doppelganger from next-door hanging out.
I went inside and William2 followed. William jumped onto my bed, William2 did too.
Once I had got William2 back outside it meowed through the door to get back in. The dog sniffed at the cat under the door and it hissed and scratched at the glass.
Will this friendship continue? We shall see…