In the Chichi no Okurimono (Father's Wish) series:

V.1 - Heart no Tsubasa (That Old Feeling)
Of all the favors her beloved father could ask, helping Clint McPherson was the only one Brandy King wanted to refuse. Of course, her dad didn't know his right-hand man had once rebuffed her kiss. Well, that was then. This was... No different.
Somehow Clint's allure had improved! And he'd added a secret weapon to his arsenal of charm: a toddling baby girl in need of mothering. Well, Brandy was nothing if not brave. She'd make diaper changing her first conquest. Then she'd show this stoic single father that she was woman enough to handle what had always been between them.

V.2 - Koi wa Shabondama ni Nite (Chasing Dreams)

Dubbed the "brainy" one, Jessica King felt safest in an ivory tower. So working in a garage for brooding mechanic Garner Blake was well outside her comfort zone. But she would make the best of it because her father had requested it.
Yet a daughter's "duty" was not what Jessica felt when Garner challenged her opinions and looked at her that way. Both of which he did much too often! No, she felt alive. And petrified. Because she was beginning to realize she'd never known herself -- or what she really wanted....

V.3 - Umarekawatta Hanayome (Priceless Gifts)
Rand Peabody radiated iron will, fearsome strength, an ability to control things lesser men might back away from...which made him perfect for Chelsea King.
Or so her father thought. He'd hired the soldier-turned-bodyguard because he'd believed Rand could protect her and look beyond her beauty and headstrong nature. And Rand did see through her facade to realize he needed Chelsea as much as she needed him. But love? That was out of the question. Especially when that kind of thinking could only get a man in trouble, make him forget rule number one: protect the priceless gift in his care without losing his heart.

(descriptions from fictiondb)