I am desperately trying to remember an anime I used to watch as a kid in the 80s.
It was about robots, I don't remember if the boy (the protagonist) could transform into a robot or he just was the pilot but the weird thing was that before starting the "robot action" a group of girls "prepared" this guy bathing and scrubbing him (the whole scene lasted a few seconds).
I am not totally sure but I think I remember that the boy looked more mature after the girls' treatment