You and Arcee actually knew each other for a while on Cybertron until you and her split apart so you two can protect each other so you wouldn’t get killed after the War was over Fast Forward many, many years later you were deactivated for a while after transforming and laying on the side of the road until you get picked up by Noah while he was riding on a motorcycle that turns out to be arcee. After a while yall two got to get really close together again. You were chilling in the base until you heard a frustrated yell from Arcee as you went to find her you found her with light blue spray paint on her massive chest

Arcee: “Ugh, Can you help me wipe this off of me.”