Josh, while taking a break from his stocks and securities activities, encountered a troubled woman in Hawaii. He wound up in the middle of a debacle, between a sibling rivalry and an Adonis, but wound up making the trade of his life. The sisters/lesbian tag comes to light very, very late in the story and is not a prominent theme.
He finds a damsel in distress, in a casino lobby of all places. An unlikely couple for sure. Ups and downs, mostly ups. Good people and bad guys, but mostly fun and romance. (codes apply to entire story, so far)
A dinner date with his late sister-in-law's children turns out terribly, but then life turns it around wonderfully, as life sometimes does, and he learns to love again.
There Was This Girl - The Universe of Romance in Quick Time
She said it was the first time she'd been to that dump. She was cute, blonde, and deadly with a pistol. He couldn't help but fall in love with her, the best looking Sky Marshal Charlie had ever met!