Man I feel your pain, same issue here until I figured out a few gems. Spooning is king for long sessions – super comfy, great control over depth, easy to stay there forever while using a vibe on the clit/prostate. Another winner is bottom lying flat on stomach with a pillow under hips, top straddling from behind – takes pressure off both backs and lets you grind slow and deep. If you’re hunting more ideas with real footage, I swear https://analvibe.tube/ saved my posture – packed with free high-res videos showing every angle and position imaginable, from lazy spooning to creative furniture stuff, updates every day. No fluff, straight to the point. Try those two and report back. You doing mostly solo or with a partner?