I have (without hubby knowing it) recently purchased an inflatable vibrating butt plug that can expand to the size of my fist. I told myself, after losing my vaginal dildo up my ass, that I'd never put anything in the rear entrance again...but the truth is, I like it. I think I've become 'addicted' to the feel of something up my ass. This one has a flared base that won't allow it to get lost in the back door.
Another thing to consider; those barely legal girls might actually be older than they look. You know the software tht they have to 'age up' missing children so you know what they might look like today? They have those available to 'age down' older women. That I-turned-eighteen-five-minutes-ago girl with the perky tits could actually be a 27 year old mama with a lot of anal experience. And while we're on the subject of digital manipulation, let's not forget that the size of the instrument can also be digitally manipulated, as can the appearance of the anus stretching around the object. The girl might also have a grimace on her face on the other end, but they can superimpose her smile over her real face for the picture.
Never take anything you see in the films at face value. In fact, never take anything on TV or in magazines or in movies at face value, because you can so easily be fooled. Anybody seen 'Wag The Dog'? or 'Simone'? and are reality shows really 'reality'?