Stamos had Beth topless in a hot tub when Howard and Beth first started dating. Howard had to come in and stop it before it went any further Beth has wanted Stamos for years.
i love how this story has "evolved" over the years. at one point he had her topless in a tub with a bottomless stamos. then he later changed it to stamos not having his dick out. i even seem to remember john calling in and references events of that night and howard disputing them. of course, some of them were things howard had already said in the past, but has since changed, so i'm sure john thought it was kosher. but no one can keep up with howard's lies. ain't nobody got time for that.