Absolutely, as Big Mama said, it's teachable. People seem to have this idea that everyone they have sex with will know how to please a woman (or a man), as if all women (and men) respond to the same stimuli in the same way. Some people like it a little rough, some like feather-light touches, some want some squeezing, others take a licking, and some like a little of everything! As long as you have a willing student, he can learn.