Silver - Finish his lesson (passive)
From Create Your Own Story
His hands thoroughly massage your round butt through your pants and you begin to get an idea where your grandpa is going with this. You're getting quite nervous, but you want to show him that you understand what he's been trying to teach you. To succeed, you must find a balance between offense, taking the initiative, and defense, holding back. Beginning to get what he is saying, you push your anxiety aside, swallowing hard, and steady yourself with your hands against the tree, turning your back to him. You muster your resolve and return to your proud self.
"Ready, old man. Show me, what you got!"
"Now that's my David that I know. I'll show you how much strength remains in these old bones." You feel your grandfather behind you, putting his arms around your chest in a tight embrace, feeling his hard chest muscles on your back and his steel-like cock pressing against your butt.