That was really fun!!!
I started making the bondage. Actually it took me some time to make a bondage that was good enough. The first few attempts just unwinded when I did my big toes through the loops. When I finally got the right bondage I had to squat more than a little. Since it took me so long to get the bondage correct I decided to continue the dare. After the edge I got the feeling that my balls were bigger.
Unfortunately I have no stairs in my home, so I just walked around. The semi squat position made this rather difficult and I guess it looked really funny! Soon i could feel the muscles in my legs. It was a choice between hurting my balls or my legs.
After walking more or less 10 minutes I was happy I could remove the bondage and was allowed to cum.
Thanks for this fun dare! I plan to do this one again soon. I will see if I can find some stairs