Strain (Strain 2)

Rhys Cooper is a dead man. He's spent years hiding from the virus that wiped out most of the human race, but an act of futile heroism has him counting down his remaining days. The timely arrival of superhuman soldiers offers some feeble hope--but only if Rhys can reconcile himself to doing what is necessary to take advantage of it.

Sergeant Darius Murrell has seen too much death and too little tenderness. His job is seeking out the infected to put them out of their misery, or sending the uninfected survivors to a safe haven where he and his fellow Juggernaut troops will never be welcomed. Rhys's situation is different, though. Not only is there an improbable chance that Darius won't have to put a bullet in Rhys's head, but he has somehow managed to get under Darius's skin.

The virus Rhys must infect himself with in order to survive is sexually transmitted, and optimizing his chance of exposure requires him to submit as often as possible to Darius--and the other soldiers. Though the boundaries of morality have shifted in this harsh new world, Darius and Rhys question whether their humanity is too high a price to pay for Rhys's survival.