TPM: Take him for a test drive on...yourself!
From Create Your Own Story
You stare at the big black cock hypnotized. You lick your lips and decide to make sure Threepio's programming is working right first...before your mom get's a crack at it. Who knows, it could be broken? You turn on Threepio, his lights blinking.
"Hello Master Anakin, how may I be of service? Oh my, it seems you've installed some new hardware...I'm not sure it's compatible with my system..."
"That's what we have to test out Threepio. Can you feel this?"
You stroke the big black cock with your hand slowly. Threepio twitches, eyes flickering.
"Oohh myy..." He moans. "Maasster Anakin...I don't think we should be doing this..."
"Your my robot Threepio, and you'll do what I want if you don't want to end up in a scrap heap!"