She didn’t wait, grabbing his penis with her left hand, she made a fist with her right and began punching his completely exposed nuts. “Whap, whap, whap, whap, whap” five straight punches. The air rushed out of Dan’s lungs as his whole torso contracted, “whap, whap, whap, whap, whap” five more direct hits. Dan went into shock and tried to plead for mercy. His mouth moved but no words were coming out. Too late, “whap, whap, whap, whap, whap”

“Tonight we’ll increase the amount to 15” Lisa said with a ’matter of fact’ tone. I think you should be able to increase your tolerance quickly. She figured he’d be numb in a couple of minutes anyway, so she wrapped her fingers around both of his balls and waited until his breathing became rhythmatic again. Then with a one word warning she said, “Ready” and began to squeeze his testicles in both of her fists.

Watching the clock on the wall she was aiming for three minutes tonight. Lisa began to day dream a bit and had to shift her grip to maintain her attention on the task at hand. Whenever she eased her grip, the blood would rush back into Dan’s nuts and his pain receptors would register new and excruciating sensations in his clouded brain.

Dan squealed like a wounded animal every time she loosened her grip. Lisa thought that was funny and found herself pumping her hands open and closed to see the reaction on Dan’s face. At one point she interlaced her fingers at the top of his scrotum and trapping his balls at the bottom of the sac, she crushed both testicles between her palms. The nut meat was so flattened between her hands that it began to balloon out along the sides of her palms.

“If I had a third hand I’d drive my finger nails into them” Lisa was thinking out loud. The sound of her voice startled her, and she looked at the clock. “Oops that’s more than four minutes” she kept that to her self, but couldn’t help but revel in the joy of squeezing his balls, so she continued for another 45 seconds to make a full five minutes. Lisa was living a dream she’d had for years, she had unrestricted access to a wonderful pair of bollocks and could do what ever she wanted - “awesome”, she sighed.

Dan was awake, but definitely not alert. He was making some low guttural noises, but no recognizable words. He wasn’t listening too well either.

Lisa was too fascinated by the swelling orbs in her hands to notice or care much about his mental state. She was guessing at how much larger she could get Dan’s balls to swell before they were in danger of popping. Lisa was determined to find out. She figured that the exterior sheathing would stretch a little more each night, and she could document that by measuring them.

“Wow they are getting warm, do they feel hot to you?” She didn’t wait for an answer. “They’re already as big as they were on Wednesday, and we haven’t even started to kick them, yet. Let’s give you a little breather, while I shift to a new position, alright?”

Lisa kept rolling his bruised balls in her hands while he moaned and began to enjoy the sensation. His dick grew steadily until it was bobbing with each heartbeat. She noticed a drop of pre-cum, which brought her back to reality. She thought he’d obviously had enough of a rest, so she spun around until she was kneeling between his legs.

Holding one hand on each of his knees, she balanced her weight on her left knee. Drawing her right knee back she aimed at his nut sac. With his erection they made an easy target. With no warning Lisa began to drive her knee cap directly into his fully exposed testes. Her leg naturally bounced back, and she drove it back on target again.

“Munff, No, Meurthceyy, Pleeassse Murthcey” Dan was trying to articulate, but she didn’t give him a chance. Lisa continued to drive her knee into his groin until her left knee was sore from her own weight. So, she dropped her right knee and began to bounce her left knee cap into his balls.

Dan lost count, but Lisa continued until she was tired. Gleefully announcing, “80 knee strikes, Outstanding Dan! Way to go, you really took it like a Man, ‘giggle’. They are really getting huge, this is great.”

She stood up, and took a minute to drink some water. She then rolled him onto his stomach and began to untie his bonds. Telling him, “You really made some progress tonight. We’ll be sparring again in no time.” After his wrists and ankles were free, he just lay there sprawled face down on the mat.

To get her front kicks in, Lisa grabbed Dan’s ankles and lifted his legs off the mat exposing his balls from behind. This reminded her of doing ‘wheelbarrow’ hand walks with here friends as a child. Except Dan’s arms, chest and face remained flat on the floor. As she lifted his ankles higher his legs bent at the knees, so she had to step forward and hold his lower thighs with her hands, and place his feet under her arms.

It was a perfect target - Lisa slapped the top of her foot into his black and blue bulge. When he tried to lift himself out of position, it more fully exposed his groin. Lisa adeptly used the curve between her leg and foot to more fully catch not only both testicles but also his cock in her unrelenting assault.

She expected Dan to wriggle free, but he was beyond struggling. His physical strength seemed to be fully drained, mentally he was I a semi-catatonic state of shock so he laid there and took his medicine. As his body weight began to strain Lisa’s upper body, she lowered them back down to the mat. Being careful to leave his legs spread as wide as possible.