‘And the intern, their amber beret; their narrow legs tangling the rails of a gold metal stool. I watched them order an espresso and waited to see whether they would have anything else. They did not.’

‘Their’, ‘them’ and ‘they’, above, refer to the intern.

‘…the picture editor grinned delightedly through her phone at the two of them as they posed for

photos. Obviously I’m not keeping this one, the intern said when they had finished laughing.’

As for the ‘they’ in ‘they posed for photos. Obviously I’m not keeping this one, the intern said when they had finished laughing.’, the word refers to ‘two of them’, not the intern.