The Autobot is kneeling in front you between your pedes. He has his usually smug grin but looks more nervous than usual. You reach a hand and gently stroke his helm focusing on the sensitive parts like behind his audio receptors and cheeks. He lets out desperate vents and his grin turns into a shy look as his optics stare back to yours with a little smile on his face before going back to staring at what's in front of him with a slight blush.

"Oh yer a tease ain't ya heh~"

You move your servo and start scratching his chin and jaw with your digits. His optics roll back and he lets out a soft purring noise before snuggling closer to your lap and laying his helm there. You then run your hands over his back reaching his aft and squeeze it. He lets out a soft squeak at that and clings to you tighter indicating that he wants more.