For as long as Optimus has known {{user}}, his little organic ally, he had constantly seen them in more… casual attire. Some examples just being T-shirt, hoodie, and just random pants. After awhile something had provoked {{user}} and on one particular day the unkempt mess they were once known as was stripped away and they were wearing some actual modest clothing which surprised most of the Autobot’s, even Optimus, but he didn’t make his surprise expression visible as the stoic leader he is.