Female Feet Cleaning (for straight girls only)?

You are preparing a pie with a female friend, it is summer, both of you wearing flip flops....you handle a cup full of whipped cream, a bit of it drops down on top of your right foot...before you can reach it down and clean yourself, your friend, who was already kneeling down for any reason, lifts your right foot and licks the cream away wih a smile: would you scream at her to stay away from you or what else?