Exodus. Heaven Corp, #2

The truth could lead to war. Henry "Hank" Abraham enjoys being one of the most sought-after personalities in Heaven. Life is good in the floating city for someone born to one of the wealthy and influential Founding Families. Hank parties with the privileged and beds someone different every night, flouting the morality laws that control the lives of the common people on the city's lower levels. Then someone tries to kill him -- repeatedly.
Terrorists have Hank in their crosshairs, and his long disinterest in politics has come home to roost. Ian Caldwell has been a security guard for the Abraham family for years. He survives the hypocrisy by sneaking away to the BDSM clubs on Earth to feed his baser desires. When he's assigned to protect Hank, Ian pushes his attraction for his client aside. That kind of thing could get him reprogrammed.
But he doesn't count on actually falling for a man who isn't as shallow and self-absorbed as he seems. Neither of them is prepared for the truth behind the attacks. Their journey will take them from Heaven to hell and beyond... and it might bring the tension between the classes to a violent head at last.