11 years together... and sex getting better

so my so and I have been together 11 years now.

sex has always been good. and he's always been very generous lol

but for some reason the last year or so it has gotten much better...

now...the thing is.. we haven't really changed anything. it's not like we are trying anything new or different... it's just that for me..it's physically feels better now. the same positions that's we have always done are just starting to feel so much better....

has this ever happened to anyone? is it an age/hormonal thing? (for reference I'm in my late 20s)

also..just wanna put it out there that I am NOT complaining lol just curious if this has ever happened to anyone else.