The 'Baby' singer, 21, reveals he feels 'super violated' by the pictures taken by paparazzi while he was on holiday in Bora Bora.
The snaps - showing Justin strolling around his luxury holiday villa absolutely stark naked - sent Twitter into meltdown and sparked a debate about privacy and whether the photos should have been published at all.
While fans both admired the pictures and raged against the injustice of their publication, Justin kept a dignified silence.
But now, in an interview on Access Hollywood with Billy Bush, he says: "My first thing was like… how can they do this?
"Like, I feel super violated. Like, I feel like I can't step outside and feel like I can go outside naked. Like, you should feel comfortable in your own space… especially that far away."
But, the former child star, was also able to joke about the intrusion when asked about how (cough) well endowed he is.
He laughed: "That was shrinkage for me!"
Justin was caught by long-lens photographers while on holiday on the small South Pacific island northwest of Tahiti in French Polynesia.
He was spending time with rumoured girlfriend, model Jayde Pierce, although she has a white dressing gown on in the now famous photos.
Justin's single 'What Do You Mean?' is currently number one in the UK singles chart for the fifth week running.
His new album Purpose will be released on 13 November, where it will go head-to-head with One Direction.
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