Samantha trips

The two kept on running towards the town; they needed to speed up if they were going to make it back before their underwear was forfeited! It was starting to become more difficult for them to maintain their pace as they neared the final stretch of the race, but they managed to keep on. Then Samantha tripped hard on a rock in the ground. She sprawled flat out onto her stomach, landing hard on her chest.

Nate stopped running to help Samantha up as quickly as possible; she winced in pain as she lifted herself up. The bra was pulled down slightly to expose her nipples which were stiffer than ever due to her exertion. When her arms reached back around to grasp his shoulders to pull herself up, she accidentally brushed her bra against Nate's finger, causing it to be pulled down even further! Her tits pressed right up against Nate's fingers, giving him an unobstructed view of her erect nipples!

Samantha blushed beet red at that and hastily shoved her hand down, but couldn't find a way to readjust the top while running at full speed. Her boobs bounced around erratically, jiggling and slapping against Nate's hands and upper body with every step.

"Oh god!" Samantha exclaimed in dismay, noticing that people had stopped and were staring at her chest! "We have to hurry!"

Her exposed breast jiggled violently and uncomfortably as Samantha ran, slowing her down considerably. People on the sides of the path gawked at her and laughed at her embarrassment. Nate felt really sorry for her!

"Come on, come on!" Nate urged. "Let's go!"

Samantha cringed, knowing what she needed to do. As she ran, she pulled her sports bra all the way off, flinging it away in one motion to reveal her naked breasts and jiggling tit-flesh as it went! Her jugs jostled wildly as they swung freely in front of Nate. He gasped audibly at the sight of her bare tits, especially since her nipples had grown even harder than usual and were standing straight up. The bra must have been digging into them quite harshly, causing her nipples to swell even more in response to the irritation. Her massive tits swayed from side to side as she ran, jiggling obscenely with each breath that she took.

Samantha tried to push herself faster, trying to make up for lost time, but Nate's eyes were glued on her breasts jiggling all over as she ran. Every time he saw them bouncing around like ripe melons, he could feel his own stiffening cock throbbing inside his strap.

His erection was impossible to contain at this point, painfully protruding from beneath his underwear. His dick throbbed heavily against the fabric of his jockstrap as he watched Samantha's big boobs bouncing all around.

"Oh shit!" he gasped as his dick sprang out, sticking straight up above his waistband.

Samantha looked over in horror as she saw Nate's hard cock sticking out from under his shorts! Her hand going to cover her eyes, she let go of her bra, dropping it on the path as she ran. She must have been in a daze from seeing Nate's bare cock, because she didn't stop to pick it up again, only continuing to run and jiggle her boobs wildly for Nate's perverted pleasure.

People on the sidelines and in passing cars on the highway watched as Samantha continued to run naked except for her panties. A few people even cheered as she passed by in her nude state, pointing at her jiggling boobs as she ran. It was all a bit too much for her to handle at once. She was mortified that everyone could see her bare tits jiggling all over due to her running; she felt like she was about to throw up! And then, she had been forced to run naked without a bra on! Not only that but also with her boobs so sensitive thanks to the constant rubbing against her sports bra that she could hardly stand it!

She felt a burning warmth coming up from her womb region; she knew she was going to have an orgasm soon if she didn't do something about it. Her legs shook, her thighs quivering from how horny she had gotten! She was so ashamed! How could she be so turned on? She wasn't a pervert! It couldn't have been all these strangers' ogling eyes upon her that had caused this reaction, making her horny!

She came dangerously close to throwing up from her shame and guilt as her legs trembled in anticipation of her impending climax, but she didn't want to lose control and soil her panties! With no choice left to her, she pushed herself harder towards the checkpoint, desperate to end this humiliating ordeal. She had already lost the contest; what was there to lose now? She would do whatever it took to save herself the humiliation of losing completely! She needed some relief from all of this sexual tension building up inside of her... desperately!

Samantha slowed down even more as she neared the town entrance; her legs were tired and trembling, making it difficult to continue moving forward at full speed. She dropped to her knees, crawling like a dog as Nate caught up to her.

"Samantha, are you okay?" he asked, concern evident in his voice. She felt like crying. Her legs were still shaking from her near climax. Nate didn't want to upset Samantha further, so he didn't bring up how he could see her asshole behind her thong as she crawled. She looked over at him with tears in her eyes as he helped her get to her feet. "You should slow down, you're almost there."

Samantha nodded, wiping away the tears as she struggled to maintain a smile. "I'm fine, just need a break," she said.

She felt dizzy as she started walking, still holding her tits in her hands and jiggling them as she walked. She was too embarrassed to run anymore. Nate put his arm around her shoulder to give her support as they made their way towards the checkpoint, where they knew Coach O'Shea must be waiting eagerly to collect their clothes from them. The two continued to walk in silence, their bodies touching lightly as they made their way towards the checkpoint.