Horsemen Trilogy Series by Mary Balogh

A beautiful, young widow seemed like easy prey for the Viscount Rawleigh. In the country visiting his twin brother, Rex longed for a little diversion. But Catherine Winters was a lady of virtue, and she roundly rejected his improper proposal to become his mistress. Since the handsome lord would not be daunted, Catherine fought the feelings he aroused—feelings that brought to life a past she had sought to escape. One kiss could bring her to ruin... moreA beautiful, young widow seemed like easy prey for the Viscount Rawleigh. In the country visiting his twin brother, Rex longed for a little diversion. But Catherine Winters was a lady of virtue, and she roundly rejected his improper proposal to become his mistress. Since the handsome lord would not be daunted, Catherine fought the feelings he aroused—feelings that brought to life a past she had sought to escape. One kiss could bring her to ruin. But temptation proved a worthy foe—and Catherine could not ignore the beating of her treacherous heart... less

Moira Hayes hadn't seen Kenneth Woodfall in nearly eight years. Nor did she want to see this man who stirred such feelings of anger in her. After all, their families had been rivals since their great-grandfathers' day. And he was the reason--though indirectly--for her own brother's death. But Kenneth has returned from war and is home for good. And he isn't willing to forget the past--a time he shared with his first and only love, Miss Moira Hayes... moreMoira Hayes hadn't seen Kenneth Woodfall in nearly eight years. Nor did she want to see this man who stirred such feelings of anger in her. After all, their families had been rivals since their great-grandfathers' day. And he was the reason--though indirectly--for her own brother's death. But Kenneth has returned from war and is home for good. And he isn't willing to forget the past--a time he shared with his first and only love, Miss Moira Hayes. The moment he sees her again, he knows his future. Because Kenneth is more than willing to forgive. If only Moira can, too. less

The widowed Sophia Armitage has a chance encounter in Hyde Park with three friends she had known during the Peninsular Wars when she was there with her husband. The three men remember her only as a dear comrade, but soon Nathaniel Gascoigne is seeing her in a different light. Sophie, though, harbors a dark secret she can confide to no one—least of all Nathaniel. His friend Eden, Lord Pelham, meanwhile, is engaged in his own volatile, humorous love story with Lavinia Bergland, Nat's prickly ward... moreThe widowed Sophia Armitage has a chance encounter in Hyde Park with three friends she had known during the Peninsular Wars when she was there with her husband. The three men remember her only as a dear comrade, but soon Nathaniel Gascoigne is seeing her in a different light. Sophie, though, harbors a dark secret she can confide to no one—least of all Nathaniel. His friend Eden, Lord Pelham, meanwhile, is engaged in his own volatile, humorous love story with Lavinia Bergland, Nat's prickly ward. It was unthinkable. It was irresponsible. It was...Irresistible less