Possible health issues w/new male leopard gecko

Question
I've been keeping leos for a while but this is my first male.

I got him 3 weeks ago and he's 1.5 years old.

After his quarantine, I set him in a viv with one of my females in hopes that he would mate.

He ignored her and actually it was my female that was licking and climbing on him.  She prefers to be wherever he is.  This isn't normal behavior for a female but i've been ignoring it.

Well today was the first time I saw him shed.  His skin on his tail stuck so after 6 hours of watching him do absolutely nothing about it, I soaked him and took it off with a qtip.

Before I returned him to his viv, i turned him to over to check if the skin was gone.  It was, but the skin stretching from his femoral pores to his vent was bright blue!  It had never been like this before.  Also one of his hemipenes (the left one) was blue.  It looked like there was a possible prolapse as I did see a bit of red poking out but to my best knowledge he has never attempted to mate with the female.

I put him back in the viv on the hot side to see if the warmth might fix the discoloration, but before he was completely inside he began squirting me with water!  It did not smell and nearly a tablespoon shot at me!

This is definitely behavior I have never seen.  What could have caused the discoloration?  Was it a prolapse and I just never saw him attempt to mate?  What about the water?  Was that due to the soaking?

I'm worried about the little guy and I'm wondering if this is all normal or if a vet visit is in order.

Answer
Hi Khrysty,
The females are placed with the males generally when breeding...the female was on her home turf and he was the visiter so she was the aggressor.
I am not a believer in breeding leos as that I do reptile rescue.
He may just not have pulled his hemipene back inside at the time..or it was out for a bit and the blood was cut off for a bit causing the blue. The other blue was most likely "pressure" causing the color..
He may have pushed out his hemipene without attempting to mate..they can and do do this..basically sexual excitement.
I'm quite sure what you thought was water, wasn't.
If you are dead set on breeding, you may want to wait a bit to make sure he does not prolapse and place the females with him...then after breeding, I would remove him to his own tank so as to not stress him or the females out.
I am including some info on prolapse so that if it does happen, you will know what to do.If he would happen to prolapse, soak his bottom in a heavy sugar/water mix..many times the mix helps to shrink the tissue, allowing it to go back in place.  Also, if a prolapse, a vet is needed asap ...you can take gauze and soak it in the sugar/water solution, and place it on your beardies vent area on the way to the vet...keep the gauze well soaked. It will help prevent drying out of the exposed tissue.

If all else is well with him, and things go right with breeding, then you most likely don't need a vet.  He he happens to prolapse and you can't pop it back in with the soaking...then the vet is needed and I would not attempt breeding him again.
Its a good idea to have all of your leos tested for internal parasites prior to breeding.