Justin Bieber and girlfriend Selena Gomez have enjoyed a lazy July 4 break on a yacht.
The Baby star, 17, and the Wizards Of Waverly Place actress, 18, spent Independence Day in New York and the Hamptons.
They were joined on the boat by hip-hop mogul Russell Simmons.
The couple were spotted frolicking around, but all in good spirits.
William Coldwell told the New York Daily News: "They were messing around.
"Justin took off his shirt and played "patty-cake with Selena", he added.
The day before their boating trip, the young sweethearts were overheard discussing dental work and the new Transformers film over a Thai meal.
"Justin was holding her hand. And then he did something that made Selena squeal, 'Ow, that hurts!' though she didn't seem genuinely upset," a source told the US paper.
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