Dead eye contact throughout. He sees the discomfort. He mercifully has 1 paw on thigh and the other on testicle. But without the relief of pain he wouldn't get to see the anguish of the pain renewed.
For some reason my cat waits until I sit cross legged, then without fail she will precariously balance her entire weight right on the furthest point of my knee to ensure maximum discomfort. If I try to move her she'll just sit there again a few minutes later. I have no idea why she does this...