How does it fit ? Sometimes I really admire bl bottoms

I have already researched...
An ass-hole can stretch to fit a whole arm and a head.

I mean, whole arm or a head.
Not both.
But whatever happen after that... no one know

Lord...a head !? Lord...

When you go down the internet rabbit holes, you will finds many unbelievable things...
And yeah, some sicko was curious how the inside would look like, and he tried it....

But the head is not of big adult man head.