Orion couldn't help but purr at that wonderfully visceral reaction. It was so nice, he decided to do it again; licking the base of the cable before sliding back up, teeth gently clamped just enough.

All the while, his own tire mounts shook, no longer with anxiousness but with pleasure-tension under the tight grip. He wiggled against Megatron's larger frame, hips twitching to try and gain the contact that the gladiator's petting was not quite achieving.