S sports-gal New member Oct 21, 2010 #1 Some times I have my little sister walk on my back to pop it. after she does it it feels soooo much better. is it bad for you? she is only like 50 pounds.
Some times I have my little sister walk on my back to pop it. after she does it it feels soooo much better. is it bad for you? she is only like 50 pounds.