I was married when I was 17. Sex sucked! I'm 23 now and I can't get enough. So, yes, it has improved with a greater understanding of what I want and how I want it, etc.
I never really experienced the fun of learning. I married somebody who was very experienced. He got right into things with me. Bend over. Flip this way. Move like this. Not much fun. Maybe the reason I enjoy sex more now is because my SO was a virgin when I got a hold of him
No expectations. Being a teacher if fun.
I'll be back in about 20 something years to the good ' ol' tfp boards to give an update!