I want my girlfriend to take a shower after any workout. Is that too much to ask?
Are you sure that's necessary?
I like her to be clean.
She probably won't care how you prefer her hygiene. I personally don't think you have the right telling someone what to do with their body.
I don't think she'll listen if I just ask her so I really want to tell her instead.
I'm sure she showers when she needs to and it's not your place to tell her to do so.