Wrex chuckled loudly at Shepard’s question, even though it was against her request. “Planning on headbutting someone soon?” He asked as his laughter dies down. “Because if you really want to know I can tell you how to do it so it hurts them and not you.”
Shepard pouted at the krogan for a moment, but his laughter was infectious and she found herself smiling despite his clear disregard for the commander’s request. “Come on Wrex, I’m being serious. One day I’m going to headbutt someone and when I do, I’d like to be secure in the knowledge that I’m headbutting them properly. Besides, how would it reflect on you if I couldn’t manage even the mildest of concussions? On my opponent, of course. I’d prefer to avoid my own concussion, to be clear."