Love
Love comes in many different forms, Sam had always known that, but he never expected it to come in the form of a yellow and black, fifteen foot robot from another planet who liked to masquerade as a Camaro.
Nor had he ever dreamed it would come from the ex-evil jock concubine he had crushed on since first seeing her in kindergarten. She would probably kill him for daring to call her that if she knew.
Regardless of the absurdity, Bumblebee and Mikeala were undoubtedly the two people he loved the most in this world. Anyone who had anything negative to say on the matter could go to hell.