Heh..

[Tommy13b]

Well i just put my female in with my male and my male begain to shake is tail insainly fast, does this mean he wanted to mate or was he threatened?

 

[Sunrise Reptile]

If it was a vibrating noise, it means he was interested. A bit later he'd have grabbed hold of her with his mouth, then worked himself into position. That is, if she was willing to let him advance.