To prove her claim, Beckinsale pulled out her phone and showed images of the alleged eggs to Kimmel and his sidekick, Guillermo. “I’m not showing you because it’s a little bit gross,” she advised the audience. “It’s quite medical.”

So, she has pictures of her daughter's boyfriend's asshole on her phone. Presumably stretched open by an egg.

Beckinsale said the family next reached out to a series of doctors, who passed the story along to their similarly confused colleagues.

“All of them basically said it was some sort of complicated masturbation thing, which it wasn’t,” she said.

Narrator: "It was."

“I said to him, ‘Is this some kind of attention-seeking? Are you putting eggs up your bottom?’” she said. “But I think it’s quite hard to put an egg up your bottom and then get it out whole without injuring the egg. I mean, I think that’s a skill.”

Yes, he's obviously had a lot of practice.

The article is strongly suggesting that Beckinsale is making the story up as her own attention-seeking behavior, but it sounds much more like the boy has more than one kink. Everything in the story points to this.

Lots of guys have the kink to shove random objects into their asshole, or so I've heard. But fewer of them have a kink to show off pictures of their asshole to their girlfriend's mother. That guy probably injured his dick whacking off from seeing that a famous guy like Kimmel saw the picture.