Blowing Off Steam by Layla Wolfe

Everything they thought they knew is blown away.

When Field Trueworthy blackmails riverboat captain Rushy Wakeman into partnering up, they’re unstoppable in their sleek new steamer El Dorado. Their rivalry turns into deep love and with the addition of high-spirited hooker Calliope, the trio outraces and outwits every shyster on the river.
They contract with cold-blooded river magnate Soquel Haight to transport opium, as Field’s son back east is dying and they need money fast. Accidentally stumbling over a few dead bodies earns them the reputation of well-respected outlaws.
But their fondness for public displays of affection and dangerous riverboat racing puts them in Haight’s bad books. They can’t keep their hands off each other and are rocketing hell-bent into perilous waters. These three hustlers are being hustled themselves, and what they learn will turn their whole boat upside-down.