After the movie. Sam had moved out of his house and lives in an apartment.
2 – Carwash
Sam was jolted from his thoughts by the blaring of a horn, a horn that he recognized as Bumblebee's. He got up from his computer, going to the window and looking out to see Bee sitting outside the window of his first-floor apartment.
"Bee! What are you doing, people are going to start wondering!" Sam called to him, and the bot just revved his engine in response. Sam frowned. "Bee."
A puff of smoke trailed from his exhaust pipe as Bee snorted faintly. "What, it's not like they're all going to freak out!"
"A car honking and moving on its own? Come on, Bee." Sam said sternly, glaring at his friend. "Now what do you want?"
"Working at the carwash! Working at the carwash, yeah!"
The song blaring from Bee's speakers was more than enough of a hint. Even though Bee had his voice back, he still found it fun to use songs. Sam chuckled slightly, standing. "Alright, alright. I suppose it has been a while since you've had a bath."
Bee instantly revved his engine loudly, a sign of his happiness. Sam gathered up his things to give Bee a bath (he had loads of them, Bee insisted on the full package) and made his way out to the parking lot, where Bee had found a spot with no cars and within reach of a hose.
The car shuddered happily as Sam sprayed Bee down, using high pressure so he could get off the various bugs and dirty places. Bee rolled into the spray, indicating that he wanted the pressure up more. Sam laughed, turning the nozzle to the hardest setting, laughing more as Bee's engine purred in content, the car sinking down on the shocks as it settled into the good feeling.
Sam made sure that Bee was spotless, and then rubbed him down with a few soft cloths. Bee purred and hummed the entire time, his frame close to the ground and occasionally rolling closer to the touch.
As Sam finished cleaning the little Autobot he wiped at his forehead. "I still don't know why you won't let me take you to the automatic carwash. They would do this for you just as well as I could."
Bee's voice was soft when he spoke next. "No carwash is better than you, Sam."
Sam smiled, patting the car's hood gently. "Thanks Bee."
Song: Carwash by Christina Aguilera and Missy Elliot (don't own)
