A spanking sex lover's problem

My husband is a lean, wiry sort of man, tall and absolutely perfect. He stays active, especially in the couple of years since we hit thirty, trying to live forever.

He's right handed, and so I sleep on his left, the better for having his right hand free for spanking me, flogging me, and giving me dozens of orgasms.

I was loving on his left arm recently, and as I stroked and kissed it, I began to realize it was noticeably thinner than his right. I stared at it for a while, trying to figure out what on earth was going on, if he'd lost a lot of weight, or what. He doesn't have any weight to lose. I began to be concerned, because I hadn't yet compared his arms and realized his right one was still the same size, and then, we put his arms together. Yep, left one's smaller, right one's bigger.

Huh. What the?

Or perhaps, how to tell if a man
has lots of amazing partnered sex.

Eventually we came to the conclusion that all the orgasms, floggings, and spankings that he gives me have resulted in this size discrepancy. It's certainly not noticeable to an average glance, but getting up close and personal with his arms, heck yeah.

The idea of the "single guy" with the one arm bigger than the other doesn't really hold water anymore, does it? Perhaps that guy is just really, really awesome to his sex partner.

I suppose my husband should add a couple of extra lifts to his left arm's routine.