In 40 plus years of lambing sheep we have never had one like we had today. The ewe had the first lamb herself which was a good size and full of life. She was struggling to push the second out so we had a feel. 4 legs and a head coming together. So we presumed the ewe was pushing 2 lambs together so tried to push the back feet of the what we thought was the third lamb back. So pulled the 2 front feet and the head and the lamb came out with a bit of pulling. Basically the lamb had no back bone the back legs belonged to the lamb. The lamb had no skin on its back end and all its organs were spilling out. The worst of it was that it was alive with a fully beating heart.