HeartOn by Amy Jo Cousins

When an injury sidelines NFL player Deion McCaskill—maybe permanently—he heads to Miami to stay with an old college teammate and his boyfriend. He packs his tailor-made suits, anxiety about the future, and the bisexuality he's ignored for years because it didn't fit with his drive to succeed at football's most elite levels.

Set designer Carlos Kelly has always known he's bi, but dating women is easier than making waves with his Puerto Rican/Irish Catholic family. His friends and coworkers from the theater community might be almost entirely on the rainbow spectrum, but Carlos keeps things simple. Except for this heat that keeps flaring between him and the hot football player visiting his best friend.

Two weeks. Two guys who've never explored their bisexuality before and don't plan on coming out, ever. One promise to let each other try out every fantasy they've ever had. Zero feelings involved.

At least, that was the plan. . .