I agree with Kadame that there is an element of devaluing the gravity of this crime.
Rape should be forceful penetrating sex without consent and nothing else.
Sex assault should be forceful fumbling around with sexual assets of the victim.
Sexual harassment should be unwanted seduction by someone in a position of power.
Other categories may be necessary, depending on how rampant the problem is. Innocent until guilty should be maintained, with caveats of course, such as safety of the victim.
If you are married, it should be difficult to convict people of these things, unless there is evidence of physical violence away from sex play. Some people like it rough. Some like to be wrestled to the ground and their clothes ripped off. We have to be honest.