First thing I noticed is her show of dominance with him. She is rather shirt, and he is rather tall, yet look at their relative heights in the photo Church steps, I suppose. Such an odd placement of her left hand.
“Short”, dangit! not “shirt”.
She is the dominate figure in their relationship. She wanted the power and just wanted to play so she had be in control. Good observation.
That’s an alpha *male* pose she’s striking; the hand denoting ownership of Bill.