I have to say after more than a decade of watching it several times weekly, I am very desensitized. Now when I meet a nice girl, the second or third thought that comes to mind is what she would look like getting DP'd by me and a girl wearing a strap on. Kinda takes the whole concept of "making love" to someone you care about and throws it out the window.
I wouldn't say its detrimental, but it definetly makes you somewhat abnormal in your appitites.