Lol I used to do that everyday when I got my baby leopard gecko but eventually I accidentally dropped him on the floor of his tank by accident so I stoped.I think it's difficult to sex them at 3 months. When I was breeding leopard geckos, I temperature sexed them so they would be female. One summer I raised the temperature in the incubator a bit to get mixed genders and I spent the whole summer looking at gecko bottoms with a 60x jewelers loupe. It was really tough! I think you're just going to have t wait a few more months and see if the V of pores and the bulges develop on anyone.
Aliza