Possible Sock Indicators

My wife's socks are very small when they come out of the dryer. One might even think they are baby socks.
Giggling about baby toes, the brown placed a small pink sock and a small blue sock on her just-beginning-to-bud belly.
"Tell us what you are." was followed by "Gah!" when a fetal crane absolutely kicked the blue sock about three inches into the air and off her belly. Proportionally, that's like me kicking a sock nearly six feet! And not just any sock, a giant sock.
So you tell me: was he kicking the blue sock to indicate his manliness, or was she shooing the blue sock off the belly, retaining he warm, pink femininity?
Pink or Blue? Bruce or Brucilla? Brucille?
We tried again, specifying "Kick the one that you ARE!", but there was no response.