Tub Fun

I have a number of fun masturbation techniques, but I'd like to share one and see how it goes.
I like to get my dick about 30% erect with lotion, then I'll bend it backwards between my ass cheeks and stride the edge of the bathtub. As I squeeze my legs together I slowly begin to pump back and forth. My hands are free for nipple or other stimulation, resulting in a powerful orgasm, right between my ass cheeks.