Jennifer's demonstration

(This is a sequel to "[Jennifer's Curiosity](https://www.reddit.com/r/BallbustingStories/comments/194bqyv/jennifers_curiosity/).")

"So you got with her because she kicked you in the balls?", Stefan asked me, grinning.

I don't know why we had invited this guy to our dinner party. It was myself and my girlfriend Jennifer, her roommate Alexa, her friend Lily, and this Serbian guy Stefan that Lily was friends with. He had a kind of bad reputation in the Seattle tech scene. He hit on practically every girl he met, especially Asian ones, and the girls who he dated usually didn't have nice things to say. But for some reason Lily was friends with him, and now he was here at our dinner party. We had already eaten the food that Jennifer and Alexa and I had cooked, and now we were sitting around drinking wine.

"That wasn't really why I got with her," I said, blushing. "It was more just something that happened."

"I don't know," said Jennifer. "I mean, it kinda was! If I hadn't kicked your balls I might have kept on being too shy to ask you out." She was sitting on my lap.

I love Jennifer, but she can be just a little bit autistic. I guess that's a good quality in a data scientist, but it also made her say some inappropriate things sometimes. Especially when she had had a couple of drinks, like tonight. For some reason, she had told everyone about the fact that she kicked me in the balls on the day we first got together. Now Stefan was grilling us about it with a huge arrogant grin on his face.

"He was too shy?" Stefan laughed. "Why, because you're too hot for him? Or because he knew you liked to kick guys in the nutsack?"

"We were best friends," Jennifer explained. "We were both afraid to spoil the friendship."

"So you spoiled it by kicking him in the balls!", Stefan laughed.

"Well, not just that," Jennifer said. "I also..."

I clapped my hand over her mouth from behind. I did NOT want her telling the story of how she danced naked for me after kicking my nuts. "Nope, that's enough detail!" I shouted, blushing. "OK, sorry," Jennifer said. She would totally have told it if I hadn't stopped her. Thinking of her naked dance, I started to get a little hard. She felt me pressing against her butt, and wiggled a little in my lap.

"I think it's a really romantic story," Lily said, clasping her hands together. "Boy meets girl. Boy befriends girl. Girl kicks boy in testicles. Boy and girl fall in love and live happily ever after."

"I wish I had a love story like that," Alexa sighed.

"It's not romantic," Stefan said, shaking his head and pointing at Jennifer. "Because you had to ask him out. He didn't have the balls."

"It sounds like he DID have the balls," Lily said. She took a drink of wine. She had been drinking a lot, so her face was flushed.

"How did he react when you kicked him," Stefan asked. "Did he cry and fall over like a wimp?"

"He did," Jennifer laughed, putting her hand to mouth. She patted my head apologetically. "I feel so bad, I hurt his balls so much."

"I did not cry," I protested, feeling myself blush. I tried to remember if that was actually true.

"See, that's the problem," Stefan said, cocky as always. "You're dating a wimpy guy. He couldn't even take a kick to his balls without falling over and crying. That's why he was too wimpy to ask you out. That's why you had to ask him out."

I was getting mad at Stefan. I was about to say something angry, but Lily reached over and punched Stefan in the shoulder. "You talk big, but if Jennifer kicked you in the balls, you'd be on the ground too."

"I would not!" Stefan said. "Yeah it would hurt, but I'm tough. I wouldn't fall over like a little bitch."

"You should let her kick you!", Alexa suggested. "Jennifer, wanna kick Stefan in the balls?"

Stefan looked a little less confident for a second after he heard that, but he recovered quickly. "Be careful," he warned. "If she kicks me, she might have to break up with him and get with me instead!"

"I don't think it works like that," Jennifer said, taking his bragging seriously. "But I'll kick you if you want." Lily clapped her hands and Alexa smiled.

"What do I get if I don't fall down?", Stefan asked.

"Jennifer should have to kiss him!", Lily suggested.

"Hey, what?!", I said angrily.

"OK, deal," Jennifer agreed before I could protest more. "If you can stay standing, I'll kiss you."

Stefan smiled. "Today a kiss, tomorrow who knows?"

"What is going on here!", I protested. Jennifer bounced up off my lap, patted me on the head, and kissed me on the cheek. "Don't worry, even if I have to kiss him, I still love you," she said.

We all got up and went into Jennifer's living room. It was the same room where Jennifer had kicked me, nine months ago. Kicked me, danced naked for me, and then kissed me on the beanbag chair. That beanbag chair was gone now, but the room held a lot of memories.

Stefan walked confidently to the center of the room, grabbing his balls with his hand theatrically. Jennifer walked past him to push some pillows and laptop bags out of the way. As she walked past him, Stefan reached out and quickly massaged her shoulders. "This is going to be our first intimate moment," he said. Jennifer made a confused face, but he didn't see.

I was getting angrier and angrier, but I didn't say anything, because I thought that would make me look jealous and pathetic.

Alexa, Lily and I sat down on the couch to watch. Lily put her arm around my shoulder. "I know how hard this must be for you, seeing your girlfriend kick another guy's balls," she said. "I know that's your love language."

"Honestly, I'm just as happy my balls are safe today," I said. But for some reason I still felt jealous.

Stefan walked to the center of the room and spread his legs, grabbing his crotch with his hand again. I was worried that his jeans would give him more protection than I had had when Jennifer kicked me. I had only been wearing boxers. I was also worried that she would be afraid and go easy on him, allowing him to stand up. Then he would look tougher than me, and my girlfriend would have to kiss him.

Jennifer, as usual, was wearing athletic shorts. Her athletic pale legs were mostly bare. She made some slight practice kicking motions with one leg.

"OK, you have to kick me exactly as hard as you kicked him," Stefan said. "That way we can get a good comparison."

Jennifer nodded. "OK. You have to put your hands on your head," she said.

Stefan complied, with a smirk on his face. "OK, go ahead," he said. "Time to see how a real man takes a kick."

Jennifer pulled up her hands and spread her perfect legs into a taekwondo stance. She had a very serious look on her face. I have to admit, I got hard seeing her like that. Then she stepped forward and kicked her back leg up into Stefan's balls, just the same as she had done to me months ago.

There was an audible smack as foot met jeans. Stefan made a squawking sound, and his hands immediately went down to cup his balls. Jennifer stepped back, watching. Lily and Alexa whooped and cheered. I felt a thrill run through my crotch. Somehow seeing Jennifer kick Stefan's nuts had turned me on.

Stefan doubled over and his knees bent inward. His face scrunched up in pain. "Can you stay up? Can you stay up?" Lily yelled from the sidelines.

Stefan was struggling desperately to stay up, but he was losing the battle. He fell forward and tried to catch himself with one hand, but lost his balance and toppled onto his side. There he lay in a fetal curl, making low whimpering sounds.

"Jennifer wins!", Lily yelled, throwing her hands in the air. "Stefan goes down!!" Alexa applauded.

Jennifer looked worried. "Are you OK?" she asked. "I hope I didn't injure you."

Stefan couldn't answer. He was red in the face, with his eyes shut tight. As he squirmed on the floor in pain, I saw tears start to leak out of the sides of his eyes. So much for him being too tough to cry.

"I think I really hurt him," Jennifer said, prodding Stefan prone body with her foot. "Alexa, can you come here and check if he's OK?"

Alexa was a nurse at the university hospital. She sighed and got up off the couch, going over to crouch down next to Stefan. "I need to take off his pants," she said.

She reached down and unbuttoned Stefan's jeans, then pulled them down to his ankles. She had to pull his hands away from his crotch for a second to get the jeans down. He was wearing boxers underneath. Alexa reached up one leg of his boxers and felt around for his balls. Stefan whimpered as she felt them.

"They're a little swollen and they're obviously sore," she said. "They seem like they're in the right place. We could take him to the ER and get him an ultrasound, I guess. But I think he's probably just bruised."

Jennifer sighed in relief. "Thank God," she said. Alexa got Stefan an ice pack from the freezer and put it over his balls.

"That was epic!", Lily said, coming over and hugging Jennifer. "You humiliated Stefan!"

"Isn't he your friend?", Jennifer asked, confused.

"Yeah, but he's so cocky," said Lily, smiling. "He needs to be taken down a peg once in a while."

I came over and massaged Jennifer's shoulders. She moved backwards against me and I put my arms around her waist. I felt myself starting to get excited as her butt rubbed against my crotch.

"Plus, you proved that your boyfriend actually has pretty tough balls," said Lily, smacking me on the butt as she walked past us.

It was at least ten minutes before Stefan could get up and lie on the couch, with Alexa and Lily's help. He groaned in pain. "My fucking balls," he muttered. "You broke my fucking balls."

"You probably shouldn't ask girls to kick your balls, then," Jennifer said quietly, so that only I could hear.

After another half hour or so, Stefan was able to walk. Lily offered to drive him home. He didn't even look at Jennifer and I on the way out. Afterwards, we cleaned up with Alexa.

"Should I have kicked him?" Jennifer asked Alexa. "I probably should have said no."

"Why not," Alexa shrugged. "That guy's an asshole. I don't know why Lily invited him over anyway. Honestly it was pretty entertaining to see you take him down."

Alexa turned in for the night, and Jennifer and I went to her room. I lay back on the bed. Jennifer crawled onto the bed on top of me and traced her finger over my chest. We felt each other's bodies a bit.

"I might have kicked him a little harder than I kicked you," Jennifer said. "I really didn't want to have to kiss him."

"I bet it was the same," I said. "My balls are just much tougher than his."

She reached over and slapped my balls lightly through my shorts. "Ack!!" I said, tickling her with one hand while I protected myself with the other. She squirmed and laughed.

"You guys are so funny," she teased. "You just walk around all day with your biggest vulnerability just hanging right there, and you pretend you're invincible. But then when anything hits you there, you just crumble."

"That's why we need you girls to protect us," I said, kissing her forehead.

"Can I be the official protector of your balls?", she asked, patting my hand that was still protecting my crotch.

"Sure," I said. "I appoint you the official protector of my balls." I took away my protective hand, and slid it into the waistband of Jennifer's shorts, massaging her butt.

"That's better," she said, kissing me on the neck. She took off my shorts and shirt, so I was just in my boxers.

"Hey," Jennifer said after a minute. "Remember what I did right after I kicked you that first day?"

"Uh-huh," I said. "I do remember."

"Want me to do that again?", she asked, grinning.

"Yeah," I said.

Jennifer got up and went over to her laptop, while I stacked some pillows and propped myself up to watch. Then she stripped off her clothes one by one, throwing each one onto my face as she did. I tossed them onto the floor. Jennifer was now completely naked, and every bit as beautiful as the day we got together.

She went to her laptop and played "More & More" by Twice. Then she hopped up on the bed and did the dance. I had an amazing vantage point. She wasn't able to get all the steps quite right, and she stumbled a couple of times, laughing.

After about half of the song had finished, she fell onto her hands and knees. She crawled over me, and slipped off my underwear. I was at full mast, of course. Jennifer crawled up the bed until her face was over mine. Her long black hair fell in my face. She moved her right leg until her knee was resting up against my nuts.

"You didn't cream your pants this time," she said. "Does it only work if I kick you in the balls?"

"Hey, you can't do that," I protested, sliding my hands on her bare hips. "You're the protector of my balls, remember?"

"How about if I just go around kicking other guys in the balls?", she asked. "And you can watch."

"Now that sounds hot," I said. "And then none of them will be able to have kids. And then you and I will have to repopulate the world." I slid my hands down to her butt and thighs.

"I don't think there's enough genetic diversity with just two people," Jennifer said.

"You're such a fuckin' nerd," I said, drawing her head down to kiss me. "A beautiful ballbusting nerd."

"That's why you love me," she said, reaching down to slide my dick inside her.

"Yes it is," I sighed.

​

(THE END)

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