Seth Rogen is "really happy" with Orlando Bloom's penis and thinks Justin Bieber's manhood is "wonderful".

Seth Rogen

Seth Rogen

The 'Pirates of the Caribbean' actor was recently pictured baring all while paddleboarding on vacation with girlfriend Katy Perry, while the 'Sorry' singer went skinny-dipping on holiday in Hawaii, and the 'Sausage Party' actor admitted he was very impressed with both men's members.

Asked on 'Watch What Happens Live' which of the two he thought had a nicer penis, Seth said: "I've seen Justin's before [in a picture], so maybe I was just like, you know, 'I've been there, done that,' a little bit. And it's a wonderful one!

"But Orlando's, I was really happy with. Good for him! He's in great shape overall. So I thought, honestly, Orlando's probably a bigger guy, and proportionally, his penis looked to scale, which makes me think overall it's probably bigger."

But the 34-year-old actor thinks Orlando has other great attributes too.

He said: "He has a bubble butt... And he's a nice guy!"

The 'Pineapple Express' actor joked he always likes to see raunchy pictures of other celebrities.

When first asked if he had seen the photos, he told host Andy Cohen: "Oh, yeah! Of course! As soon as I hear there is a famous penis out there, I am the first person to ravenously devour it online."

While Seth was most impressed by Orlando's penis, Justin's dad recently went online to boast about his son's manhood.

Following the publication of images of Justin, 22, nude on vacation, his dad Jeremy Bieber, 41, took to Twitter to write "My boy" along with a cactus emoji.

Although he deleted that tweet, Jeremy went on to share a picture of his native Toronto's CN Tower on Instagram and tagged Justin in, with fans believing he was making a reference to the size of his son's penis.

He then took a picture of himself beside the tower and, once again, tagged Justin in.

This isn't the first time Jeremy has bragged about his son's size.

Last year the singer threatened to take legal action after three full frontal nude photographs of him taken while he was on holiday with Jayde Pierce in Bora Bora surfaced online but Jeremy didn't appear too concerned.

He took to Twitter to praise the 'Where Are U Now' hitmaker's manhood, tweeting: "@justinbieber what do you feed that thing. #proud daddy (sic)".

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