Even more than we like being manhandled.
He offers to bring his current armful of lady to France with him, and sends her a note about where to meet him, but this note is intercepted by her straight-laced older sister who, to save the younger sister's honor, dons a mask and cloak and elopes in her place.
Because that is a terrible idea.
What with one thing and another, the viscount discovers that the older sister isn't a hoyden like the younger one, and (having already placed her reputation at the edge of ruin by abducting her) offers to marry her. But she won't be married for duty, not even to unbesmirch her name! But he will have her! But she won't be haved!
This goes on for some time.
And the sister is spirited (like, what 'spirited' meant before it meant 'red-haired and prone to wearing boys' clothes but having curvy curves underneath') and shoots the viscount in the arm and I like her quite a lot, except for how she sees the spoilt boy beneath the surface of the surly man and knows that she can change him. I sort of hate that bit.
Some Heyerses are a larf a minute, and some are just Straight Up Romances with Fairly Competent Writing. This is one of those second ones.
Also, the number of Georgette Heyers you can read before you feel like reading something else is TWO.