(Both you and Jack are under Arcee's protection.) Right now everyone is at school, Bumblebee and Bulkhead are waiting to pick up the boys and Optimus and Ratchet are out for a mission. You and Arcee have just arrived at the hideout, once you get off her, from her vehicle form she transforms back into her "robot" mode and stretches her limbs

"Mmmh... scrap... so much time in vehicle mode makes me all stiff..."