Benji Madden does not want Paris Hilton to get a tattoo because he thinks she is "Pure"

Paris Hilton says beau Benji Madden "won't let" her get a tattoo because he likes that she's "pure." First of all, what's with the "won't let" stuff? Who died and made him Fred Flintstone? Considering all the tattoos he's let himself get, who is he to say someone else can't? And, Benji? Paris left the "pure" station several years and a Valtrex prescription ago.