Masturbation is such a great learning tool for getting to know our tools. Yes, there are times when we just need to whip it out and pound away to get our rocks off. But there is so much more pleasure to be had if we learn: Learn to take our time, find the sweet spots and strokes. That is especially true for straight and bi guys.
Because, if we don't know how to derive the most pleasure from our cocks how can we ever teach a woman to treat it properly. When I was young, we would tell the girls who were groping our crotches, "For crying out loud, it's not a stick shift! Do it like this..."
Now, it's a known fact that men are much better at giving hand jobs than women. If we've learned what we like, what feels especially good to us, we can teach them how to handle a cock with a little finesse.
So practice, guys. Explore your cock; study it. Explore your balls, explore your body.
Learn what feels good to you.
Learn what takes you over the edge and makes you cum.