Alright, I never took physics class in high school (I have taken biology, chemistry, and in place of physics, I took anatomy), so I am genuinely curious if this would be possible:
You would need to be incredibly strong to do it, if it even works.
Say I am standing in front of someone. I reach across and put my hands on their shoulders, and they do the same to me (hands on outside of shoulder). I then pick them up (this is where the incredible strength part comes in).
Would they then be able to do the same to me, and we keep doing it and get higher and higher in the air? Or would they need to be twice as strong since they would be lifting not only me, but themselves too? WOULD this even be possible?