You need a cube with a hinge door at the side
With sturdy and fairly restrictive foam inside cut to a human's foetal position body shapes, and then have all the necessary joylity bits sticking out.
'Help me, i'm trapped in a sex box.'
(
Jeru War and Piss,
Wed 27 Feb 2008, 19:33,
archived)
CAPTAIN HOUSE.
(
Captain Wow currently being a cunt in Infamous,
Wed 27 Feb 2008, 19:36,
archived)