* * * he came into my room one night when i was fifteen . then there was a different voice on the other end . my mother 's hand stroked over my hair . he was starting to like the way she assumed the aggressive role . if you cant find the second key , then this evil , alien commander fellow probably cant find it either , so were safe for now . `` so how can you tell what 's clean ? '' you dont need to look like a fashion plate around us all the time . 