Ah ok pickle, I too thought it looked like two spinal cords, I was wrong!
SomeDyke, you made me really laugh out loud:
Full term out yer bum ain't good engineering chaps, and even if it did wonderfully stimulate your prostate
The chappies, and fantasists, have a long way to go before reality. The uterus is a muscular organ, hooked up with blood supply and nervous system. You can't just whack a uterus-like object in there and expect it to 'grow babies'. Uterus transplant has been done successfully with related females I believe, but not further than that.
Dudes need to get their collective heads around that females are actually the default of the species, males are the variation. That is in part why female transgenders can more readily (and quickly) appear male with testosterone, but male transgenders (particularly late transitioners) need a hell of a lot more (ie surgery)