I have had and get a lower back but almost backside pain after using
I wonder if it is because of the added flow of blood in that region,
mine usally goes after a day or two.
I DP ed a girl a while ago at a swingers do it involved going in doggy syle as she rode the other guy..
My legs were akimbo and hips where out like i had been on a a horse like John Wayne for a few days after that Asda trip
The stuff gives you the power to do daft things with your cock but we end up paying for it for a few days after