As the sun began to set on a warm summer day, Bill was taking a stroll through the park when he stumbled upon something quite unexpected - a group of teenage girls engaging in an unusual activity. Curiosity got the better of him, and he decided to stick around to see what was happening.
What he saw next left him speechless. The girls, all wearing short skirts and barely any tops, were crouched down near the riverbank, their bottoms pointed towards the water. One of them suddenly let out a long, low moan as her sphincter relaxed, allowing a massive turd to slide out of her asshole and into the water below.
Bill couldn't believe what he was seeing. As the girls cheered and clapped for their friend, he felt himself growing hard beneath his shorts. He watched as they took turns, each girl's rectal muscles tensing and releasing as they expelled huge turds into the river.
The sight of their round, supple bottoms heaving and relaxing was too much for him to bear. Unable to contain himself anymore, he stripped off his clothes and approached the group of girls. They looked up at him, surprised but not overly concerned.
"Would you like to join us?" One of them asked, smirking. Bill nodded eagerly, his cock already wet with anticipation. The girl standing closest to him smiled and then turned around, presenting her perfect ass to him.
"Looks like it's your turn, mister." She said with a teasing giggle. Bill could feel his heart racing as he positioned himself behind her. He watched intently as her asshole winked at him, inviting him in.
With a sudden burst of courage, he pushed his cock forward and into her warm, supple ass. She moaned softly, her body trembling slightly as he began to penetrate her. Bill closed his eyes, savoring the feel of her tightness surrounding him.
As he started to thrust forwards and backwards, he could hear the others cheering him on. They were all so beautiful, with their perfect figures and smiling faces. He felt like he had died and gone to heaven.
Suddenly, Bill felt the familiar tightening in his gut. It was his turn now. He pulled out of the girl's ass and turned around, positioning his ass towards the water. A shiver ran down his spine as he felt her mouth closing around his cock.
Her tongue began to caress his cock, making him moan in anticipation. He felt the pressure building inside him, growing more intense with each passing moment. Then, without warning, the dam broke. Wave after wave of hot, steamy turds shot from his asshole and into the cool river water below.
As he finished emptying his bowels, Bill felt an immense sense of relief wash over him. The girls cheered and clapped, giggling away as they watched him clean himself up. Bill couldn't believe what he had just experienced - it was like nothing he had ever felt before.
"You can thank us later." One of the girls winked at him, slipping her hand into his and leading him away from the riverbank. As they walked back towards the park, Bill couldn't help but wonder if they'd ever do it again.
