Listen to this really funny joke?

A guy picked up a woman at a bar one night and took her home. On the way, she asked him if he had aids. He told her he didn't. At his house she asked again if he had aids, and he assured her that he didn't. In bed, after they had begun to remove their clothes, she stopped and turned to him.

"You're sure you don't have aids?" she asked.

"Yes, I'm sure," he told her, getting a bit annoyed. She finally stopped talking, and they had sex for hours, doing everything imaginable. Afterwards they were laying there in bed and she snuggled up to him.

"Look," she said, " It's too late now, so you might as well tell me if you have aids."

"I told you I don't have aids," he almost yelled.

"Oh, thank god," she sighed, "I wouldn't want to get that again."