When the woman tried to run out of the room naked, the soldier said he was 'completely stunned' and 'didn't know what I had done wrong'.
Thomas Herrington attacked his victim when he was 18-years-old.
Herrington was accused of pulling his victim around his bedroom by her hair and tying her to his bed with a dressing gown belt, then performing a sex act that he knew she"absolutely hated".A military court threw out two charges of rape and instead convicted Herrington of sexual assault by penetration.
Sentencing him, Judge Advocate Alistair McGrigor said:"It was an unwarranted and unwanted action that meant she consequently fled the room. Rough interactions has its own inherent danger. She claimed he gained pleasure out of her"struggling", dragged her by the hair when she tried to escape, and pinned her down by his dressing gown belt in an attack so violent she said she thought he'd kill her.
Herrington said the woman was not drunk but"happy and giddy" during their first sexual encounter that night.