Rogue In My Arms The Runaway Brides by Celeste Bradley

When Sir Colin Lambert learns that the little girl left on the steps of his gentleman's club belongs to one of its members, he's filled with hope. Could Melody be the daughter of the beautiful, impulsive actress who broke his heart? Colin is determined to find out with the help of his lost love's former seamstress, Miss Prudence Filby. But soon, Pru's disarming manner and seductive voice are stirring all manner of doubts in his mind--as well as some delicious fantasies...

Pru's only motivation in helping Colin is to reclaim the wages she's owed. Or at least, it "was," before days and nights traveling together draw them into a heated, thrilling intimacy. But as soon as Pru discovers his noble status, she suspects she's been a fool. To a man of his standing, she can hardly be more than a dalliance, even if their scorching passion makes her long to take center stage in his life--and in his arms..