I suffered excruciating pain for weeks. I thought I was going to go crazy. The funny thing is, my balls were so painful I couldn’t take it anymore. Then my sister-in-law told me I had to go to the doctor. The diagnosis was hyper zoospermia, a condition in which men become filled with sperm, causing pain. So, the treatment was to masturbate as often as possible until I felt relief. And who could help me with that more than my beautiful stepsister? I begged her to show me her bondage, and she spread her ass cheeks to get me going. Initially, I was hesitant, as it was pretty weird, but eventually, I gave in. Nope, her bondage was perfect. But that wasn’t enough. I made her masturbate in front of me. I stroked my cock while looking at my naked sister. She started rubbing her clit and wet pussy lips while looking at my hard cock. Anyway, after a few hours, I felt the pain again. I thought I was going to pass out. I went to her room for another round, but this time, I wanted a therapeutic massage, if you know what I mean. My sister-in-law was disgusted when I told her that. At one point, she collapsed. She put her hands on my dick and started tying me up. I could barely get it in her mouth. When her tongue touched the tip of my dick, it was like an electric shock.
While she was sucking my dick, she caressed my balls, squeezing them lightly and scratching them with her nails. She asked me not to tie her mouth as she had never done that before, even with her boyfriend. I tried to avoid thrusting into her mouth, but it was getting harder and harder. My dick shot straight into her mouth! She started choking on loads of cum. She had to swallow every single jet that was spurting into her mouth. Dude, I pumped her so full! Balls healed! The story’s twist is that her boyfriend dumped her one day, so I got what I wanted. She was horny and wanted sex, so I was the solution to her problem. We agreed to keep it a secret. It started with a blowjob, which she did incredibly well. I could see how much she craved cock. She removed her sexy underwear, spread her ass in front of my face and rode me in a cowgirl position, where I could see her whole sexy body as she jumped on my tool. She soon started screaming, “Fuck my ties!” I gripped her hips tightly and plunged my hot throbbing cock deep into her toes while my balls were slapping against the bottom of her pussy. I fired multiple shots of hot bondage cum deep into her bonds, pressing my pelvis against her ass for maximum penetration.
