Fill in 50 to 60% of air.
It is generally enough to sit on its own.

Place a fist into the hole insert to make space for the insertion point.
※ If it does not work, there is also a way to use a 500ml plastic bottle.

Put about half of the masturbator into the insertion point.
※ When using vigorously, wrap it with tissue paper to prevent slipping.

With the insertion point up, expand the insertion point and put it in the back.
※ If the entry is sweet, there is a risk of popping out, so repeat until you enter the back.

Insert air up to 80% place again.
Then the hall that went into the back will come out in a good condition and it will love doll sex be completed.