Lady, Behave by Cerise DeLand

She was a Diamond with a few very tiny flaws—and the desire to be good.
He was a rogue with the sense to reform—and to help her to be bad.

Adelaide Devereaux flabbergasts most men she meets. She’s a Diamond, petite, mild-mannered—the perfect picture of a demure lady. She has one ambition—to kiss every man she likes until she finds one whose lips make her hear church bells chime.
In Brighton, she meets confirmed bachelor Gyles, Marquess of Heath, who is felled by her charm. Though he vows to kiss her until she’s felt the earth turn on its axis, he cannot claim her unless he fixes his parents’ refusal to accept her. They’re too high in the instep to accept a wayward Irish lass who’s the granddaughter of a notorious rascal.
Pride might stall their romance, and lust might motivate a scoundrel to try to carry Addy away, but when love is the only passion that matters, do not all objections fall before its power?

Note: This series is part of Dragonblade’s Flame line, so this is a sexy, steamy, and scorching-hot read with multiple sex scenes. Be advised.