Harder (Hard Series #2)
Jamieson Wolf

One day, he finds out by accident.
When he catches a glimpse of Sebastian's cock while standing at a urinal, Owen has no idea that not one, but two of his fantasies are about to come true. When Sebastian begins to jerk himself off and then offers to jerk Owen off, Owen figures he's died and gone to heaven.
But the fun has only just begun. And Owen's cock will be harder than ever before by the time the day is over...