That and why should he pinch Illya's cheek? If he does so, she'll probably go yandere and try to give a romantic excuse as to why she say chopped his head off and is keeping it magically alive for herself this time.
SquishPinchWhat do you eat to make it this pretty?SqueezeMust be great, huh......Must be great for Toosaka,She gets to pinch and squeeze Saber's cheeks like that...Your skin's really pretty, Saber.Tch... Rin,It's hard for me to eat like this.SquishPinch
