Ok, Rob's admission that he and Kristen are engaged is British sarcasm at work, but looking at this interview, there's no denying Rob's running out of ways to pretend his relationship isn't real!

In a game of "True or False," Matt Lauer on the Today Show asked Pattinson about a series of rumors. "You're dating a costar whose name rhymes with Tristan Blewart," Lauer asked. "Yes" Pattinson responded, trying not to crack up. "You got engaged?" "Ahhh, yes," Rob responded after a pause.

He also admits that he got into a "butt accident" and had a "drug overdose," so obviously he's not being 100% serious, but there's always a little truth to the rumors, right?