Then he hopped up and prepared to climb on my back.

"Why don't you swing down and climb into the harness on my back?"

Climb on my back and hold tight to my neck.

Then, feeling rather pleased with herself, she climbed on the horse's back.

When everything was ready, she climbed on Whinney's back and started out.

If I turn around, will you climb on my back?

The boy tied the horse to the cart, then climbed on the animal's back.

Well then, let me see if I can climb on its back.

They climb on its back and accelerate into space.

Except that when painting a duck, "you have to climb on its back to use the roller."