Sam was still missing his shirt, but he was really embarrassed and mad at Tammy for pulling down his shorts and underwear. He didn't think that was fair since he had only ruined her fake doll, not any real person. He decided to pull down her pants too, just like she did to him.
Tammy looked pleased with herself, and turned to walk back to the swing. Suzy had freed up Sam's shirt, and was walking toward him when she saw Sam start to sneak behind Tammy. Most of the crowd of kids were still watching, so Sam moved fast. He crept right behind Tammy as she was walking and pulled her pants down as fast as he could. Her pants were stretchy and pulled down easily. Sam made sure to pull them all the way down, causing Tammy to trip a little and bend over to catch herself from falling. Sam realized she still had her panties on, and he reached up for them next.
Tammy was having none of this. She turned around before Sam could reach her panties and she punched Sam square in the balls. "OOF!" Sam cried as he doubled over in pain. He couldn't believe it. He would never get her back at this rate. The crowd of kids, and even Suzy, all laughed as Sam curled up with his hands between his legs in pain. "Boys are easy to hurt," Tammy said to Sam as she pulled her pants back up. "You can't hurt girls the same way," she said, pointing to her crotch. Suzy walked up to Sam and handed him his shirt. He grudgingly put it on, seeming to accept his defeat. Suzy walked away, certain that the two were done fighting for now.
On the ground, Sam thought hard about what had just happened. Tammy had exposed his privates, humiliating him, and now she punched him in the nuts. He had to show her that she couldn't get away with this. Tammy paused for a moment to fix her hair, pulling out her hair band and looking up to the sky. Sam figured his time was now. He simply must make her as humiliated as he was. Sam ignored the pain in his balls and rushed over to Tammy. He reached up to Tammy's waistband, which was perfectly exposed since Tammy's arms were stretched up, fixing her hair. Sam made sure to get a good hold on both her panties and pants on both sides, and pulled down hard.
In an instant, Tammy's pants and panties were around her ankles, exposing her front to the crowd. Tammy gasped, looking Sam right in the eyes. Sam grabbed the front of Tammy's shirt, stood up, and pulled it up over her head, exposing her training bra and giving everyone a clear view of her girl slit. But Sam wasn't done yet. He knew girls were sensitive down there, even though they didn't have balls. He'd seen Suzy hurt her crotch on the balance beam at the gym once or twice, so he knew a kick would hurt too. So, as Tammy struggled to pull her shirt down, Sam took a step back and gave a full swing kick straight to her pussy. The tip of his shoe split her lips and hit Tammy's clitoris directly. Tammy winced in pain, falling down to the ground on her knees.
Sam stood there, mouth wide open, amazed that his plan worked. Tammy had been pantsed, exposed, and kicked in the crotch. He'd finally gotten even. But that's not how Tammy saw it. She wanted to take away Sam's boyhood. Tammy stood up in a fit of rage, pulling up her pants and screaming, partly from the pain but mostly from Sam's audacity. She couldn't believe he actually pantsed her completely, and then kicked her BARE pussy! Sam had to be taught a lesson.
Sam saw Tammy's rage, and ran away, wide-eyed. He had never run so fast in his life, but Tammy was right behind him. Her groin ached as her legs moved faster and faster, but she knew she had to catch Sam now. Sam looked back and saw his sister closing in on him, and he squealed with fear at what she might do to him. He ran around a huge tree and decided his best bet was to go back on the rope bridge. He made a mad dash for it and climbed up quickly. Thinking that Tammy was right behind him, Sam started across the rope bridge.
Tammy wasn't about to go climbing up that silly tower. She knew Sam liked the rope bridge, and figured he'd cross it. She went right to it as Sam climbed, and even had time to wait for a second until Sam started to cross. Tammy reached up with both hands through the rope bridge as Sam crossed, grabbing both of his ankles. She pulled Sam's legs down hard and fast, making Sam grasp to keep himself up, wrapping up in his loose shirt again. It got stuck in the rope, and Sam was stuck dangling with his bare belly, once again.
Tammy wasn't trying to humiliate him this time though. Her clitoris was throbbing with pain that she had never felt before. He was going to regret kicking her privates! Tammy pulled Sam's shorts and undies down to his ankles, exposing his dick and balls to the open air. She quickly grabbed his nuts in one hand, and squeezed. Sam's face was stunned. He stopped moving and turned his face toward his sister with his mouth wide open. Tammy had a tight hold on his balls, and looked her brother in the eyes with a fierce stare.
"You better not try that EVER again, Sam!" Tammy said, squeezing his balls as hard as she could when she said 'ever'. Sam winced in pain as his precious boy jewels were being crushed by his sister. "If you ever pants or kick me again, then you won't be a BOY anymore!" Tammy said, squishing his testicles with all her might as she said 'boy'. Sam let out a high pitched yet quiet scream as he felt like he couldn't breath from the pain. Tammy pulled down on Sam's balls in one last gesture of superiority, leaving Sam's naked boyhood writhing in pain. Sam pulled his legs up to his belly, desperate to protect his nuts.
Suzy had watched the whole thing, and ran over to help Sam back up on the rope bridge to get free. She pulled up his shorts and undies, and pushed his legs up the bridge. Sam just lay there, trying not to puke. After a minute, Suzy convinced him to just climb down so he could relax. As soon as Sam got to the ground, he felt like he'd been hit in the gut with a brick, and he puked. Suzy looked at Tammy, disappointed that she'd hurt her brother so bad.
"You know he might not have kids now, don't you, Tammy?" Suzy said. "Well he should have thought of that before he kicked my coochie!" Tammy exclaimed. Sam dry heaved a few more times before he was finally able to stand. He thought about what Tammy said about him not being a boy if he hurt her again, and he knew she meant it. She didn't care if his balls were broken. He decided to take it easy and take a bath when he got home.
When Sam and his family got back to the house, Sam walked slowly upstairs to take a bath and inspect the damage to his balls. He walked into the bathroom, leaving the door open and...