Meet Cinder, Willow, and Aspen

[Kissa]

Ah Robos... I love them, but I sure hate sexing them! And I'd actually be inclined to say that they're both male!

I've attached a pic of my male and my female Robos for comparison. As you can see, the "holes" in the male are far apart with fur between them, like the two you have posted. The "holes" in the female are nearly on top of each other, with no fur between them.

My male also has a very yellow scent gland, but that is because he is 7.5 months old and fully mature, whereas your guys are still only young.

As for colouring, the two babies are pied, and I think mum might be a headspot