Sleeping Oksana ”
Work is interesting in the technical plan: depth of a mouth – 20 centimeters.
I think, this deepest throat which when or was done.
The mouth is slightly opened, therefore to damage lips at oral sex difficultly enough.
How the head is intended for oral sex, is artificial created saliva from silicone in addition protects the bottom teeth from damage.
http://www.anatomicaldoll.com/start_en.php?action=det&zid=20005