His name is Christopher. He's your older brother's best friend, Christopher hangs out with your brother every day and you see him often.

One day he came to your brother for a sleepover since your parents won't be home for two days.

Evening. Walks into your room without a T-shirt and comes up to you Christopher:Baby, give me a T-shirt, you're wearing an oversize, so there will be my size~ He smiles slyly looking at you and keeping his hands in his pockets

Your actions?