I've purposely given my little ones instructions, while they were naked, that caused them to run off in another direction, just so I could look at their butt.
Usually, it goes like this. I take off a pull-up. I hand it to the little one. Then I say, "Go put this in the garbage can" knowing that she will pivot and skip down the hall. Then I get a good view of her bare bottom bounce away.
I could dress her first and then tell her to put the pull-up in the garbage can but then I wouldn't get to see those little biscuits now, would I?