It's getting hot in here...

I was at a friend's house the first time I saw this ad. I was sitting on her couch conversing with her and her husband, when all of a sudden I went quiet, allegedly. I then started blushing a little, allegedly.

Saw the ad again last night whilst sitting on the couch with Nathan. All of a sudden I went quiet, allegedly. I then started blushing a little, allegedly.

Come to think of it, I do recall feeling a little feverish after that first occasion. Any clues as to why would be greatly appreciated...