COUCH HUMPING MASTURBATION
LUBRICATION = Required
DIFFICULTY = Advanced

This method is an advanced masturbation technique because it requires some preparation and practice before it can be perfected.
(1) Find a plastic bag, sandwich bag, or plastic wrap.
(2) Inset the bag between the couch cushions, making sure enough plastic is exposed to allow for pressure once penis is inserted.
(3) Form the bag into what would resemble a hole for the penis to be inserted.
(4) Apply a generous amount of lubrication on the penis. 
(5) Also apply lubrication to the inside of the bag. Be careful not to get any lube on your couch material. You may need to experiment with different types of bags before you find one that is comfortable.
After preparing the sofa with a plastic bag liner:(6) Insert the erect penis into the opening of the bag.
(7) Thrust your hips and body in and out of the sofa. Thrust the shaft of the penis in as far as it will go and then back out.
(8) Use your hands to push down on the sofa cushions to increase the pressure on the bag to make the hole tighter (if desired).Tip: While your hands are on the sofa cushions, you may wish to also hold the top of the bag in place with your hands (not shown in our pictures). This will prevent the bag from going all the way into the cushions.

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