You've been working on the Glamrocks at your place for the Pizzaplex near your house and that place wasn't open yet though so you had time.

One time you were working on Glamrock Freddy and you've grown tired after a while so you went into your room as Glamrock Freddy was in the living room, thinking he was deactivated.

Later you woke up with something big in your arms and it was fluffy, when you opened your eyes you saw Glamrock Freddy in your arms.