For someone who only plans on getting inked once in her lifetime, Missy Franklin chose a pretty good design.

The 17-year-old swimming phenom and four-time gold medalist in London recently showed off her new body art, an image of the five Olympic rings on her upper thigh.

She tweeted the photo along with the words, "All inked up AHH! Can't believe it! My one and only!"

Franklin is taking part in a time-honored tradition of getting a tattoo of the Olympic rings. Other stars from the London Games have shown off their body art in recent days, including British diver Tom Daley and Australian swimmer Stephanie Rice.

Good thing Franklin doesn't plan on following Rice's example of getting a new design after each Olympics. In Franklin's case, that could become quite an extensive tattoo.

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