Optimus purred, despite trying to keep down his smug expression as he watched the little mech react to his first spark-touch.

"Not whatever."

Leaving his fingers to rub circles over his wrist, he leaned his helm down, optics bright as he rested his chin on the edge of Cliffjumper's open chest cavity. He smiled, idly watching the whirling lights of Cliffjumper's own spark corona...before he wiggle light-sheathed fingers.