those two are definitely older than a month and a half--maybe he meant a year and a half old? although and 1.5 years old they should be more plump and have fatter tails but that could just be the result of not having been fed correctly or fed enough. i'm not sure about the sex of the one that is supposed to be the male--from what i can see in the photo it doesn't really appear to have enlarged pre-anal pores...
here is a quick guide to sexing leos:
this is a male:
note the enlarged pre-anal pores along with the presence of bulges at the base of the tail.
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here are two shots of a female:
note that there is still somewhat of a bulge but the pre-anal pores are not enlarged. the cloacal opening curves inward more as opposed to being more flat like that of a male.
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