I was at the gym with my female friend . I am also female. When we finished our work out we showered . The showers are communal at this gym their is no privacy. That doesn't bother me but my friend all of a sudden took the soap and began washing my back I let her do it bet felt incomfortable . She didn make any kind of sexual advance . Is this normal

If you feel really uncomfortable, ask her why she did it and tell her how you fely.
Therefore it should be condoned, accepted, as well as encouraged to be filmed and shared.