She did? She posed? Where did you read that?
The way I read it, there were two pictures taken of her "frolicking" and "cavorting" -- sounds to me as though the pictures were taken surreptitiously or, at worst, spontaneously and casually.
Let me put it this way. She ran around topless with not one but two guys. A third person was able to take pix. Call me a prude, but she shouldn't have been flashing her boobs to at least two of her fellow soldiers. What, was she auditioning for "Military Girls Gone Wild"?