Betty White on Robert Pattinson's sexy praise: 'Now that's a comedy line'

When the world's hottest actor -- Robert Pattinson -- calls you "one of the sexiest women in America" -- what can you say?

Pattinson, 23, raved about Betty White, 88, on "The Today Show" this week: "She's vibrant; it's sexy. I think the more age, the better."

Her response?

He sounded quite serious to us. But White says the "Twilight" star's comment was high-larious. "Now that is a comedy line!", the "Golden Girls" star told Access Hollywood.

Recently, White did a funny Snickers Super Bowl commercial, flipped the bird to Ryan Reynolds in a Funnyordie.com video,  called Barack Obama "one hot piece of man" on Craig Ferguson, and told the Dish Rag that she begged to do a nude scene in "The Proposal."

Now there's an ongoing campaign to get her to host "Saturday Night Live."

"All this came out of left field -- all of a sudden, all this stuff has come in," she admits. "I don't know any more than I did in the beginning, I'm just watching in awe."