help sexing Nephrurus wheeleri

[jumbo9]

hello , I need some help to sexing my Nephururus . They have 5 or 6 months, the gecko number 1 weighs 6g and the gecko number 2 weighs 5g. I'm asking to you the help to be sure about their sex,I don't understand if they are a couple.I'm going to send you two photos with two numbers to distinguish one from the other . Thanks you to the attention.

 

[diplodactyla]

they seem a pair, i refer to the frontal view pics, the number 1 is male for sure, number 2 90% female.
Please consider that if the REALLY are 5/6 monts old, the weight is incredibly low and inappropriate. That weight is the proper one of a 3 months old individual.