Gloria Wong (黄榕)’s panties to promote her book?

This simply put my mind to blank (!). I have never imagined one would gives out panties to her book fans. Does it even sounds like a reward? Apparently Gloria Wong (黄榕) is promoting her book, literally an album of her naked photos and she picked a lucky fans of hers to own her panties which she took off on stage (!). She remarkably said that the panties still have her body heat (!).

The lucky winner of Gloria Wong’s panty. I guess he would have it framed? Or he would auction it?