The former sergeant had already been found guilty of infecting a 28-year-old man with HIV and is serving two years and three months in prison.
He was in Munich's state court once again on Thursday, accused of dangerous bodily harm after knowingly infecting a second man. who is also a solider, with the virus.
He apparently met the 34-year-old online in September 2009 and the pair agreed to meet at the army barracks in Pöcking, Bavaria, where he was then based, the Münchner Merkur reported.
Judge Oliver Ottmann heard how the 34-year-old asked the suspect twice before having sex at the barracks “whether he was healthy”. Both times he said yes.
Two months later, the soldier sent his one-time sexual partner a text message apologizing and saying he had HIV. He claims not to have known at the time they had sex.
But the victim already knew before the text was sent, after being told by a former lover of the ex-sergeant. After this the victim went to a state prosecutor and the case re-opened.
In court on Thursday the suspect told his victim, “I'm sorry, everything went wrong.”
Being knowingly infected with HIV can result in compensation of around €75,000.
The case continues.