@Kucinghitam IMO a soldier assaulting a prisoner of war's genitals is quite different to a doctor carrying out a medical procedure in the legitimate course of their work. The touching of a persons genitals is usually sexual. The touching of a persons genitals by a medical professional, in a medical setting, as part of a medical procedure is for obvious reasons, not considered to be a sexual act even though it involves intimate touching.
Let's look at it like this:
You have two women going for a smear test. Both ask to receive care from a female doctor. One receives care from a woman, and one receives care from a man who believes they are a woman, who doesn't disclose their biological sex.
Both doctors carry out the same medical care, one with informed consent, one without.
Why is one sexual, and one not? Touching doesn't become sexual in nature simply because consent is not informed. The nature of the medical care is the exact same in both scenarios.
How the victim feels is not determinative of whether or not a sexual assault took place. You would also have to evidence that the touching was sexual, otherwise it wouldn't be a sexual offence.
It's a niche situation because in pretty much all other circumstances that I can think of, genital touching and lack of consent would be considered to be a sexual assault. But medical practice works that way. A doctor can literally slice you open and remove an organ in the course of their work and this is not considered to be a violent assault (for obvious reasons). In any other situation, it would be.