Dionne Warwick denies sister molested Whitney Houston. You know when I first heard Whitney’s family claiming that her cousin Dee Dee Warwick molested Whitney Houston, I didn’t believe it. It seemed convenient to just to add sizzle to the movie. Both Whitney Houston and Dee Dee Warwick are not around to give their versions of what allegedly happened and now Dionne Warwick is speaking out saying that it is hogwash a.k.a. as bulls—. I’m with you on this one Dionne.