I look after them many weekends as their owners have a caravan and go away. One of them is friendly but a little timid.
The other however.....
This is MY sofa and Ophie's blankie 
(oddly enough my cats have just shrugged and taken virtually no notice!) If I refuse to let him in he cries and cries outside the door. They are only 9 months old and obviously prefer company!!
Looks rather 'at home' doesn't he! :D