Password protected Texting for MMS

[drisc72]

Has anyone ever herd of a program that lets you put a password protected lock on tabs in tf3d, Like for instance if you wanted your text messages locked so that your girl friend cant see them but can still "play" with ur phone or for instance if she were to absently pick up ur phone while ur in the shower and though she can still pick it up and use it to " call her phone cause she cant find hers" and not be able to access ur texts without out the pass code. Like password protected lock for the phone but only for the texts and maybe emails? its a shot in the dark but i figured i would try