Hotel Help

I'm in my hotel room and I have lost my earring. I notice the guy from the room beside me is in the hallway and I ask him to help me find it. After he finds it, I must reward him for his efforts. He is a hot nice looking black guy. I wonder how big his dick is. I see there is only one way to find out and that is to reward him for my finding my earring by letting him use me.