3 Buzziest Moments from Robert Pattinson's Howard Stern Interview: Porn, Engagement and 'Twilight'

While promoting his work in the upcoming film "Good Time," R-Patz touched on his childhood secrets, his near-firing on the set of "Twilight" and relationship with FKA Twigs.

Here are the three most surprising moments from the interview.

Back in Pattinson's childhood days in London, the actor got expelled from school for shoplifting and selling X-rated magazines for a large sum of money.

"I was, like, stealing porno magazines and selling them at school," Pattinson said. "I would sell it for like 20 pounds, like 30 bucks."

"I used to go in and take one of two and put them in my bag and I was doing this in my school uniform so it was kind of risky," he explained. "Then at the end I got so cocky that I would take the entire rack and I got caught stealing."

Although Pattinson was able to avoid legal trouble, the clerk from the store did make another call to his school, which is why he got the boot.

Pattinson has been with his partner FKA Twigs since September 2014 and when Stern tried to confirm that he was in fact engaged to the British singer, he replied, "Kind of."

Pattinson discussed how he tries to keep his relationship out of the spotlight because the "Twilight" "crazies" are brutal. When news broke that the two were dating, Twigs was attacked with racial slurs on Twitter.

"Its one of the most frustrating things in the world because you want to be able to do that, but to get kind of stuck in a position where like you have to make the decision," he said. "Do you want to let kind of crazy people in because for whatever reason with 'Twilight' there's like a crack troop of crazies who think every decision you're making is creating some kind of conspiracy and so you kind of think to protect it, I want to create a big boundary between it, but then it makes it difficult for your actual relationship."

According to the actor, he envisioned his vampire character to be way darker than the producers could bite off.

"I remember the producers giving me a copy of the book and every single instance when my character smiled and stuff, they'd highlighted," Pattinson said. "So I got a different color highlighter and highlighted every time that he frowns."

Pattinson thought that he was pretty secure within the franchise until his agent was flown to set to tell him to lighten up or get fired.

That pep talk must have worked, because he still starred in the franchise after making a "compromise."