Way cool.. My cocks are friendly like that towards hen as well.... ladies first always.
I have one hen that figured out how to jump into the bucket... the rest just look into the bucket and pace back and forth not realizing that they can jump in, duh!. Probably a good test for selecting intelligent chickens. It would be interesting to see someone develop a breed just for intelligence.
My cocks only do it for hens with their chicks. Not just for hens.