There are few deal-breakers as universal as infidelity. Most readers avoid any mention of it like the plague, and very few authors can – or even try to– pull off a believable HEA when one of the protagonists cheats on the other. But what if the hero and heroine cheat together?
I recently read Just One of the Guys by Kristan Higgins, in which the hero and heroine sleep together despite the fact that they are both seeing other people. Obviously they both eventually break up with those other people and they end up together (it is a romance novel, after all) but not before they each return to their significant others and try to work things out. […]