Strongest muscle in my body.

I discovered the strongest muscle in my body today. At least the one that I would try to develope in the gym, anyway. I walked up to a machine that I had not played with befor, settled in, set the weight to 20 pounds. I did a rep. It was too easy. Set it on 30 pounds...Still too easy. I finally had to set it on lifting 50 pounds befor I got real resistance. Can anyone guess which muscle that was?

It was my ASS!

I guess all the walking is what did it. I suppose if I keep up the working it out, as well as walking, I may have Jlo booty soon. Oh....darn.