Roger took the only course that seemed open: he leaped on the bull's back.

It staggered from the weight of a Cimmerian leaping on its back.

Richard tried to pull her off him, but a tiny vampire leaped on his back.

Then she leaped on the mare's back and took off in a dead run across the plains.

The younger boy leaped on Bustskin's back and bore him to the ground.

Perhaps he could leap the gulf with her on his back.

Data leaped on the creature's back with the impact of his full weight at an acceleration no human could achieve.

Big F turned away and it was all Web could do not to leap on the man's back.

"Come then," he said, and she leaped on his back.

Conn gave chase, leaping on the man's back and bearing him to the ground.