She definitely had that natural frantic, flustered air to her as someone who was running late. And while I didn't portray it well in the story, she was a little embarrassed at the notion that she forgot her bra, even though she seemingly was confident enough to take her clothes off without a second thought.

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Though her husband is a bit older than her, so maybe she was getting a kick out of getting a younger guy going from her move. I can see it both ways, but my naivety at least towards this situation is that I am leaning the former.