This is actually 110 words, because I made some deletions along the way.

I lean back, luxuriant, my shoulders fitting perfectly inside his, hands lightly gripping the wood just above the tail of the broom.

He swears affectionately with a quick turn of his head that leaves his mouth an inch from my ear.

I can feel the muscles in his back working as he holds the broom in check.

I chuckle, calculated to annoy, and watch the ground below as it speeds away from me.

We are not high up and occasionally my dangling feet skim the tree-tops.

I think he is trying to scare me into holding on properly, but I am relaxed.

I know he will not let me fall.

I definitely prefer the revised version