Rough Sand Jerk Off Instruction

I want you to wank your cock in a very special way for me today! You will need some sand for this, so go get some now. I dont care where you get it from, the important thing is that you will jerk off as I demand. You may then wank your cock until it is hard and worship my sexy tits. Now, your cock needs a little lubrication, so spit on your dick then take some sand into your hand and wank! Does that burn hurt? I dont care! Keep on wanking until I allow you to cum!