Sure, you can't tell the girl, so just let a small child keep your secret, kids are known for keeping secrets, especially the shit slinging kind, those are the best at it....
Kids today: "Mom, I'm going to Kevin's place."
Moms today: "Fine. But make sure to send me an IM every 30mins, to let me know you are still well."
Kids 30 years ago: "Mom, me and my friends go down to that abandoned stone pit and see if we can find caves to explore."
Moms 30 years ago: "'Kay. Dinner's ready at 6 sharp!"