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length of his penis. The skin is loose and mobile, allowing his penis to grow. His scrotum (the bag of skin holding the testicles) becomes tighter, so his testicles are drawn up towards the body.
Stage 2: plateau
The glans (head) of his penis gets wider and the blood vessels in and around the penis fill with blood. This causes the colour to deepen and his testicles to grow up to 50% larger.
His testicles continue to rise, and a warm feeling around the perineum (area between the testicles and anus) develops. His heart rate increases, blood pressure rises, breathing becomes quicker, and his thighs and buttocks tighten. He's getting close to orgasm.
Sensual love secrets by Joyce wolayo