It all makes sense if you are drunk, i do apologize for the incoherent ramblings. Some what sober i shall explain my point of view.
As i mentioned human beings belong to a group called 'Deuterostomes', which means the first body part to emerge from a fertilized egg is basically an anus. That is essentially how we humans start out. Hope that clears it up, i would suggest further reading about it online.
Now apply all of that to the birth of Muhammad, who Muslims consider Pak and adorn with lofty praises but in reality like everyone else he started out as an arsehole floating aimlessly in his mothers womb. Hope this makes more sense