Theo James says his prosthetic ‘White Lotus’ penis was ‘ginormous’

It was a massive … deal.

Theo James — who made waves in the second season premiere of HBO’s “White Lotus.” — revealed Friday that the prosthetic penis he wore for a nude scene in the show was “ginormous.”

James appeared on The Tonight Show with Jimmy Fallon where he described the phallic fiasco.

“The truth of it was, you go into these scenes and you have a conversation with the director and the producers and they go, ‘Okay, for this, we’re going to use a prosthetic,’” said James.  “And you say, ‘Okay, that sounds good.’”

The scene in question features James changing into a bathing suit while Harper (played by Aubry Plaza) watches in the bathroom and caused a stiff tension between viewers over whether or not the penis was real.

“I said, ‘Honestly, I just want it not to be distracting,’” the “Divergent” actor said to Fallon.

“‘He needs to be Regular Joe, ’cause the scenes … you know, it’s not about the pee-pee — it’s about power play and sex. It’s about whether he did it deliberately or whether it was an accident and what that means and all that kind of stuff.’ And she says, ‘I got you. I got you. Regular Joe.’”

According to a 37-year-old, things took a massive when he showed up to the set to film the scene.

“We get to set and she’s got, like, a hammer or something,” James said. “I mean, it’s bigger than that. It’s like she stole it off a donkey in the field. The thing is ginormous. And me and the director, Mike White, are sitting there going, ‘That’s … average, is it?’”

James continued saying that both he and White immediately ran off to call their spouse to profusely apologize.

“It was nine inches flat and about four inches wide. We were like, ‘What the hell is that,’” continued James.

The Post reached out to James for comment.

In November, James revealed to Entertainment Weekly that the scene was toned down for its original version.

“The original derivation of it, it’s kind of full-frontal, if you know what I mean. We shot that and it felt too much, too aggressive,” said James. “What we came to is a bit more opaque, and that’s exactly what Mike does so well. You’re never sure a hundred percent of the characters’ intentions.”