Icelandic pornographic litterature from 1350. See comment.

Bosi went over to her bed, and she asked what he wanted, He said he wanted her to put a ring on his stump. She said she wondered what ring he could be talking about, and he asked her if she didn't have one. She answered she hadn't any ring that would fit him. "I can widen it if it's too narrow" he said. "Where's that stump of yours? I've got a fair idea of what I can expect from my narrow little ring."
He told her to feel between his legs, but she pulled her hand back and said his stump be damned.
"What does it remind you of?" he asked. "My fathers steel-yard with the ring broken off". "You're very witty", he said. He took a ring of his finger and gave it to her. She asked what he wanted in return, "I want to put a stopper in your bung-hole" he said. "I can't think what you mean", she said. "Lie as open as you can", said Bosi. She did as he asked, and he went between her legs and made a thrust deep into her body, almost under her ribs. That made her jump, and she said, "You've pushed the stopper right through the hole, man."
"I' ll get it out again", he said. "how did you like that?"
"Nice as a drink of fresh mead", she said. "Keep the mop stirring in the flue."