I'll just squat down so I can get closer to you, then I can detect any twitches or signs of seepage.
Now we'll start the testing properly. Hold your dick and rub it much harder this time.
That's it, make sure your fist goes up and over your ridge every time. Do it in 30 second bursts, then pause and breathe in.
Let me see —. Hmmm clear signs of arousal, but you still seem to be in control.
Good boy. Keep doing that while I get up again.