I need to examine you closely, I'll just put my glasses on.
Hold your shaft at the base, that's right, and squeeze with a long slow upward stroke. Hmmm I thought so! You're seeping a bit arent you?
I hope that doesn't mean you are losing control, I'm not finished with you yet. I think that means you're getting a bit over-excited though, doesn't it?
Are your balls feeling a bit too full? That ache means you need to cum doesn't it? Squeeze your spunk-filled balls for me.
Now let me see your sticky wet tip while you touch it with your fingertip