I found this when I was surfing youtube, I haven't gotten the chance to test it myself, since I'll of my friends are being stubborn and won't do it with me, so can someone tell me if it works?

http ...

i just tried this with my brother and it didnt work..maybe it only works with one person?

Im sure it would work if you got inside eachother, one person lies down the other jumps on the persn who is ...