My Uncle is (partially I think) disabled and I have helped him shower. Not everyone who does it is gay. It's a little odd at first, but then you just realize it's another human body. The thing was, I didn't hardly need to touch him. Just use a washcloth a little and let him do what he can himself. Just had to make sure he didn't slip or fall. How much can you wash yourself? Can you use a washcloth? It really depends on how much the person will need to touch you.
And if you ask for a woman, that might seem creepy.