Female wet dreams are indeed talked about in the 99 cent book “Orgasms: 101 Facts & Trivia“. It happens to be #38 of the 101.
This appeared on ‘Huffington Post — Canada‘ on April 15, 2015. As soon as I saw it I kind of had an inkling as to where they might be coming from. But, I first watched the video. I am actually familiar with the study that they base this story on — and I do provide you with a link to it. The study wasn’t exactly about laughter and humor as you will discover if you read about it. There could be another headline: ‘Trust Fund Lads Give Their Female Partners More Orgasms’. That is, in fact, another finding on this study, though not stated as such.