Still smiling at Elita's gesture, Optimus made a bit of a face at Grimlock of all people making 'co-commander'.

"Well. That is one thing the Grimlock of your world and mine have in common. Grimlock and I...do not get along in the slightest." His engine gave a little involuntary rev at the reminder. 'Not getting along' was a very severe understatement.

"Though I imagine of anyone could handle working with Grimlock, it would be an Ultra Magnus with the sense of good humor and fighting spirit yours seems to have."