Now that you're fully erect and obviously ready, start stroking and don't stop until I give the command. Don't do too much too soon, you don't know how long I plan to keep you stroking. For the moment, carry on as I undress.
Oh, and one other thing. Don't get to the edge. I want your sex drive climbing up that hill, but I don't want you anywhere near orgasm yet. Just enough to get your heart racing and your dick throbbing. If you get to the edge and/or have to stop for any reason, you must slap your balls fifteen times, then wait another fifteen seconds and resume stroking. Should it happen a SECOND time, get dressed, go home, and come back on a night when you think you have a little more self-control.
You'd better still be stroking, bitch. Long, full strokes, no wimping out on this.