Anything but a Gentleman — Elisa Braden

A spinster hatches a plan (with a smattering of blackmail)
Miss Augusta Widmore has no time for proprieties. She must force her sister's ne'er-do-well betrothed to the altar with all haste -- or watch her sister bear the scandalous consequences. But with the blackguard resisting his duty, she needs leverage. And only one man can provide it.

A giant holds all the cards (or so he thinks)
Sebastian Reaver has no time for presumptuous women. He has a club to run. So, when a perfect nuisance invades his office, demands a fortune in markers, and refuses to leave until he relinquishes them to her, he knows just the thing to send her scurrying back to Hampshire: Exact a price this prim country spinster would never agree to pay.

A fiery battle begins (with both sides playing for keeps)
Ordinarily, Augusta would never agree to become the mistress of a notorious club owner -- whether he's a lowborn ruffian or the wealthiest man in London or the most intriguing, ill-tempered giant she's ever encountered … or all three. Calling his bluff raises the stakes (and the heat), but retreat will mean ruin for Augusta. Now, Sebastian wants her total surrender, and he has a few tricks up his sleeve -- soul-stealing kisses, unexpected honor, and electrifying persuasion for the woman he never saw coming.