Favourite for January

This is one I've only ever come across as a standalone image rather than part of a series so I've had to let my imagination loose on what we're seeing.

I imagine the girl is phoning her boyfriend to explain that her father had been quite cross about her coming home so late last night but as usual she'd manged to talk him 'round and he hadn't grounded her or anything so they'd be able to go out again at the weekend. But no, she didn't feel like going out tonight as she had a few things to attend to.
Of course WE know that there maybe another reason she's not feeling much like partying right now...!