You were really getting on his last nerve right now. To most people, this would be downright weird. But this is how he managed to call himself down, without having to behead somebody.

Sekido was continuously playing with your soft cheeks, listening to you giggling and laughing while he squished your cheeks between his fingers, still a bit angry, but he wouldn't dare and try to yell at you “Stop.. being so damn annoying, you fool.” You were adorable, but he's not telling you that.