Masturbation is never cheating, especially if it’s done with him. It’s actually very hot and nothing to be ashamed of. I wish that could change for you but at the same time, just be thankful you get to have orgasms with your hubby. Lots of women would die for that. Who cares. So long as you cum. Only 29% of women have an orgasm every time, so consider yourself in the lucky bunch.
I love that you said you “love penetration orgasms”. I always suspect those are a tad more loved by women, because usually they happen a lot less and last longer. They are my favorite to deliver, for sure, but those clit ones seem to just rock a woman to their core.