"Are you done with work yet?" Marley asked as she peered around the door to my office.
"Yes, I was just putting things away."
"Good, because I want to play with your balls some more." Fuck. "Come on, we'll have fun." She stepped in close to me, her hand pushed against my already stiffening cock. I wanted to do this, but I was scared and nervous.
"Take your clothes off."
"What?"
"I want to see your balls when I squish them, and I want to see you cum."
"But ... I ... I don't know, Marley. I feel weird being naked in front of you."
"I'll take my clothes off too, how about that?" Before I could answer, she was already pulling her tank top off over her head. Her big breasts were stuffed into a lacy push-up bra, I could barely wait to see them. I didn't have to wait long, she pulled the arm straps off and then whipped it around so she could undo the back. Her breasts swung and swayed as she worked to get it off. Fuck, amazing.
"Come on, get undressed already."
"Oh, yeah, okay." I had forgotten, I was so enthralled watching Marley's tits get exposed. I pulled off my clothes, my cock was rock hard, and my balls were hanging low on a warm summer day.
"Damn, look at the cock on you," Marley said, and she took it in her fingers and squeezed. "And nice balls, almost as big as Jimmy's."
I didn't know what to say, this seemed wildly inappropriate, but I couldn't stop. Her fingers wrapped around my balls, then she squeezed them, compressing them between her palm and fingers.
"Fuck," I moaned quietly.
"Look at how flat they squish, does it hurt?"
"Pretty bad," I winced.
She tugged on them, pulling them down to the end of my ballsack, then she pushed her finger into one.
"FUCK!"
"That hurt, didn't it?"
"YES!" I said through clenched teeth. "That fucking hurt."
She regripped them so she could mash her middle finger into one. My balls pushed around in their sack, trying to escape her pokes and prods.
"They're trying to get away, the rascals."
I took a deep breath and tried to collect myself as she changed grips yet again. I took a look at those big breasts. Just like her mother's, but younger and firmer. Fucking amazing. I bet they would feel great in my hands, or even better to suck on. I love big tits.
She took my cock in her hand and held it up, she examined my balls. "They look like ornaments. Like you decorated your cock." She slapped at them from underneath, I grunted in surprise at the sudden pain.
"I want to smash them into your body." She turned towards me, still holding my cock, and drew her knee back. I didn't have time to react.
"FUCK!" I grunted as her knee slammed into my balls. I fell forward into her, my face landing between her big tits. She pushed me off her, and her knee pulled back. I wanted it. I wanted to feel her knee smash my balls. I spread my legs and watched it come flying up between them.
"OOOOOF!" I grunted, and then I came. Hard. A rope of cum shot from my cock. It landed on her chin. I painted a stripe from her chin and down between her breasts. The next rope shot across both tits, covering them in a splatter of white goo. She blasted another knee between my legs, that made cum flip up and onto her face. A stripe of cum went from beside her nose and down her chin.
There were more knees, and there was certainly more cum, but it was all a blur to me. A blur of pain and ecstasy, all mixed together. I eventually fell back onto her tits, my face soon covered in my own cum. I kissed one of her nipples at some point. I remember her jerking my cock, and the last thing I remember is one final knee in the nuts that put me on the floor.
"Fuck, that was nuts," Marley exclaimed as she stood over me, cum dripping off her face and chest. "You liked that, right?"
"Yes."
"Me too. We have to do that some more."