Humburg, Germany- After her sixth breast enlargement operation at the Alster Clinic, in Hamburg, German porn star Carolin Berger better known as Cora died yesterday due to complications. The 23-year-old German Big Brother star had been in a coma for nine days following the operation. She was trying to enlarge her bust from a 34F to a 34G. The 49-year-old surgeon and the 54-year-old anaesthesiologist who performed the operation were under investigation on suspicion of negligent homicide, according to the prosecutors. The Berlin-born TV star tweeted her fans just before the operation, a cute photo of her dog sleeping in a laundry basket.