Slow the metronome down to 60 and give your cock some slow, hard strokes.
Really massage your cock, squeeze it as you stroke up and down.
Up and down, just like how your eyes run over my body. *Smiles*
Mmmm, such an obedient stroker boy, I'm gonna give you a prize. Stroke however you like until you hit the edge.
Don't just think about how much you want to cum on me, think about how much fun we'll have inside later if you can just hold out.
When you hit the edge, take your hands off and rest for a second.