The perineum (the space between his anus and the base of his testicles) is incredibly sensitive in some men, but not in others. If you haven’t explored this area together, do so now.
Stroke his perineum during oral or manual foreplay. If he is responsive, go back there when he is highly aroused. As you are sucking his cock or giving him a hand job, keep one hand free to play with the perineum. Stroke it. Press your thumb or finger pad lightly into it.
When he is on the brink of ejaculation, hold his thighs apart and lower your mouth to his perineum. Flick your tongue rapidly back and forth across that area. Now press your thumb lightly against his perineum—gauging the pressure by his response—as you continue flicking your tongue. This drives some men wild, but affects others not at all.
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