Help Sexing

Hi,
I have two uros who I thought were originally a male and a female. However, I cannot see much difference in their pores and I recently heard that males have a yellow belly as well as a yellow back and although mine has a yellow back his belly is white like the female (I think she is a female.) I was hoping that someone could help me sex them. Here is some pictures of them and a picture of the one who I thought was a male`s pores:

I've never been good at sexing Uros. I usually liked to wait for eggs. Then I was 100 percent accurate everytime.

Ive had them for about a year and half now and no eggs-another reason im thinking they are both female.

Compare the pores and see if they seem simliar.
If I remember correctly, males often have a waxy-substance coming from them are are usually larger.

Their pores are very similar and I don`t remember ever seeing a waxy-substance.

The photo you posted "appears" to be male...while both genders will have the pores, normally the females don't have pores that are show up that well...(the quality of picture isn't great, but it "appears" to have quite distinct pores extending along the leg)

Oh, and as far as coloring goes..to my knowledge the underside of the Mali (which your picture appears to be) doesn't really vary due to gender...(I know with Uromastyx geryi, only the males develop the intense underside coloring/pattern.....but I wasn't aware that was the case with the Mali species??