How do you keep a suction cup dildo stable on the bed for riding? (Need advice for frequent anal play)
I want to start using my suction cup dildo as my main/only way to masturbate so I can finally learn to cum from my ass. It sticks perfectly in the tub, but the tub is too cramped for my large frame. On the bed the base slides around too much on the soft mattress.
Any reliable ways to make the base super stable on a bed? Mats, grips, pillows, or other hacks?
Also, what riding techniques help you avoid hip cramps and pain during longer sessions? Kneeling, squatting, leaning forward? Best positions for comfort and deep riding?