Full-frontal nude pictures of Justin Bieber have emerged online.

The snaps, which have been published by the New York Daily News, appear to show the pop star stripping off for a swim while on vacation in Bora Bora, French Polynesia this week (beg05Oct15).

Justin is seen walking around an outside terrace at a resort as he relaxes with rumoured girlfriend Jayde Pierce, who is pictured reclining on a chair in a white robe.

He has also been posting his own pictures of his holiday on his Instagram.com page, with one shot showing him standing on the edge of a swimming pool overlooking the ocean.

The nude pictures have emerged just months after Justin posted another saucy snap online, showing him baring his behind on a previous vacation in Bora Bora over the summer (15).

Justin's cheeky snap received more than 1.2 million 'likes', but he later took the picture down and issued an apology.

"Hey I deleted the photo of my butt on Instagram not because I thought it was bad but someone close to me's daughter follows me and she was embarrassed that she saw my butt and I totally wasn't thinking in that aspect (sic), " he wrote.

"And I felt awful that she felt bad. To anyone I may have offended I'm so sorry. It was completely pure hearted as a joke but didn't take in account there are littles (little kids) following me (sic)!!!"