Seth Rogen can't stop talking about Justin Bieber...espeically when Andy Cohen of Watch What Happens Live is involved.

The actor went on the Bravo show to promote his movie, Sausage Party, and somewhat appropriately discussed the leaked photos of Orlando Bloom's penis, which surfaced this weekend. He compared the juicy pics to those of Bieber's, which were of similar phallic nature.

"I've seen Justin's before, so maybe I was just like, you know, 'I've been there, done that,' a little bit. And it's a wonderful one!" Rogen said on TV, referencing the paparazzi shots from last October. "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."

Rogen has had a shaky past with Bieber, starting with this tweet:

They have since made up (at the hands of Ellen DeGeneres, no less), but the last time Rogen went on Cohen's Watch What Happens Live, he talked about that infamous Bieber tweet in 2014, saying, "He seems like he's obnoxious and ungrateful, insincere, and he puts people's lives at danger," Seth said. "And overall, he acts like a piece of shit."

Watch Justin Bieber get interviewed on Fuse in this video from our vault: