I also like sitting up on the pillow and humping it quickly at a speed I am comfortable with.
Girls can pleasure themselves by humping a pillow too.
Pillow humping is the act of having sex with pillows.
Humping a Pillow: Best Tips and Stories
In my experience humping fast produces a stronger orgasm.
Description: Usually hands are used for masturbation by boys, but a pillow can prove to be an adequate partner too.