[Tom]

but somehow it just seems a little wrong to be using a tween girl to market a food that’s commonly associated with losing your virginity.

Its cross marketing. It appeals to all the tweenies who don't know hidden messages, it appeals to perverts who do. It happens all the time, its a bit like when ITV used to make Holly Willoughby dress up as school girl/french maid on the SMTV replacement and make her eat banana's or whatever

But still ...