Machine Gun Masturbation - When you're done, but you're still going, like your hand has

When you're done, but you're still going, like your hand has a mind of its own.

He came, but his hand wouldn't stop. It was like it had a mind of its own.

Even after he finished, he still kept going. 'What's wrong with you?' I asked.

He kept going even though he was crying. 'My hand won't stop!' he said.