When Robin shows up with a new boyfriend Gael (Enrique Iglesias), Ted decides he is ready to hit the town with Barney. He meets Amy, (Mandy Moore), a tattooed party girl with whom he hooks up. Ted wakes up the next morning with a butterfly tattoo--a "tramp stamp"--on his lower back. Marshall also calls Barney and shows him he has 55 days until his next slap.