Well, considering that she's bending over, it's not that big, you have to take into account the displacement that happens when you bend over. you see, the skin over the bum stretches, and the stuff under the skin needs to go somewhere while the skin is pulling closer to the bone, and structure. Now the likely place for it to go is to the sides, enhancing the large looking ass. Now, it looks big for an ass.
But it doesn't look big for the displaced ass....
Nice guys finish last! you're running out of gas!
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"It's not the fall that kills you, it's the sudden stop at the end!"
"Why don't you go outside, and play 'Hide and GoFuckYourself'?"