Have 2 - What sex are they though?

[MystrsBty18]

Okay, I just bought two, but not sure how to determine the sexes, and I need to know fast, because I don't want to have surprise babies or anything lol. How do you know which is which? Well, thanks in advance you guys!

[PyscoFalcon]

The balls on the males will be obvious if there 8 weeks or older like they should be.

[MystrsBty18]

i have no idea how old they are though, i bought them at a pet shop, and people never told me what you said, they said that there should be two holes or something, the male's are farther apart (about a cm) but mine are so active, i can hold them still