Been together 2 years and now the sex is boring

My boyfriend and I have been together just about two years now and he is HANDS DOWN the best lover I’ve been with, but lately I’m bored. We both love being dominated so we take turns doing that but even with that I’m bored. He just doesn’t seem give me that jolt as before. It’s become dull and I kinda just fake it (not too much; not trynna feed his ego🙄😒)

I want to try bondage, BUT I’m not sure if he would be into it nor do I know how to bring this up to him lol.

We don’t talk about our sex life, we’ve never had a reason to but now I’m bored and want to spicy it up but I don’t want to offend him.

PLEASE HELP😩