LOL! Wow, would you get a slap from her for that one.
I often float the idea that her sexual responsibilities--vis-à-vis me--should be be subcontracted out. (Oh, I don't know, to a bevy of modeling prospects from Kyoto, perhaps.) That way, she'd have more time to read, etc.
Seriously, I'm lucky. My wife is sill in great shape and as beautiful as ever. I married well and am still in love with my bride.