Ask him to leave but to let him in

"No. You're going back to school or I'll be calling the principal. Now get out of here." I turned on the authoritative voice to try to intimidate him to leaving. He had no business here. Not with those lecherous eyes.

"But if I don't stay here until he comes back, something might happen to him." Charlie kept his begging tone, almost pleading. Manipulative bastard....

When it came to {first_name}'s safety, I immediately start to worry, "What? What do you mean by that? Is he in trouble?"

"I mean if I don't wait for him here, something 'bad' might happen to him." He repeated himself cryptically, "Now let me in..."

I could spot an evil eye on these boys from a mile away. Charlie was up to something, but I could not shake the motherly instinct to protect my son, no matter what the danger was. It did not matter if it was his 'friends turned traitor' or some other outside ****. {first_name} was all I had.

"Alright. Come in...."

As soon as I opened the door wide, Charlie shuffled in, seemingly trying to knock into me to get me to drop my towel. My hands were too tight to keep it from falling, but I could feel what felt like a hand brush against the fabric near my lower thigh. It was all suspicious from the get go, and I felt like I had to handle this carefully now that I am alone at home with a horny, evil minded teenager.