AceShowbiz -

Orlando Bloom and Justin Bieber both had their naked photos surface online earlier this week. According to a source, Orlando's nude pictures provoked the "Love Yourself" hitmaker to show off his manhood during his Hawaiian vacation.

A source reveals Orlando and Katy Perry's reaction when they saw Justin's naked photos. "Orlando and Katy were laughing their butts off when the saw Justin's naked photos because Justin does not size up to Orlando," says the source, "It seemed like just a pathetic attempt at getting attention."

"Justin and Orlando absolutely hate each other and they have since before their fight," the source tells Radar Online, referring to the Ibiza fight back in 2014 when Orlando threw a punch at Justin for allegedly hooking up with his then-wife Miranda Kerr.

The source adds, "Orlando still thinks that Justin slept with Miranda while they were together and he is never going to let that go."

Orlando bared all during his Sardinian getaway with Katy last week. The 39-year-old was seen stripping off his swimming trunks before going for a racy voyage on a paddleboard with the "Rise" singer. Bikini-clad Katy didn't seemingly care when her boyfriend had his penis on full display behind her.

Justin, meanwhile, went skinny dipping in Hawaii with some female pals including Sahara Ray and Chloe Traichel.