Paula is my girlfriend’s personal trainer. They usually work out in my girlfriend’s pad. It happened while my girlfriend, Andrea, was out-of-town for the weekend, and she let me stay in her pad for security. It was a Saturday, Andrea and Paula’s workout day, so Paula dropped by for the regular session.
“Oh, Paula. Sorry, but Andrea is out of town and she’ll not be back until tomorrow evening. I guess she forgot to inform you about that,” I said.
“Oh, my. It’s okay. But can I use her gym? You can exercise with me if you want,” Paula said.
I let her in and use the mini gym. Paula is one of the hot ebony chicks in the neighborhood. Like my girlfriend, Paula is an ebony knockout. I watched as Paula climbed the treadmill. She was wearing a tight-fitting shirt and super short shorts. Her toned but feminine curves were 
showing. She looked at me and smiled, “Want to join me?” she said, still jogging on the treadmill. I walked to her and climbed the treadmill. We jogged together, our bodies were really close with each other. I felt her toned butt rubbed against my crotch, and soon my dick grew harder. “Ooops,” Paula glanced at me with a naughty smile, and I was sure she felt my hard-on. I tried to touch Paula’s hips to check if she’ll mind, but she didn’t say anything. So I started caressing her hips, because I was really turned on by our position. Then, my hands went straight up to her average-sized breasts, and still, she didn’t budge, she continued treading in slow pace. I kneaded her tits and I rubbed my hard-on against her butt. “Oh, you’re so hot,” I whispered to her ear, blowing warm air that sent shivers to her spine. “I know. I know I’m hot, and you are, too,” she whispered. She turned off the treadmill. I pulled down her shorts and my pants, too. And right there on my girlfriend’s treadmill, I entered Paula’s tight little cunt. “Ooohh, good lord, your dick is huge,” she exclaimed. I fucked her hard and fast, but I wanted to bring her into the room, where we can use my girlfriend’s bed to fuck. I pulled out and lifted her to Andrea’s bedroom. Paula removed her training shoes and the rest of her clothes. I kissed Andrea’s ebony soles and made her lie on her stomach. I fucked her again from behind. I fucked her until I went off after a few minutes. Like any other ebony chicks I’ve fucked, and like my girlfriend Andrea, Paula was really great in bed. After that tryst, Paula remained as Andrea’s trainer, but we kept our secret. Up to this day, when Paula is out, we still jog in Andrea’s treadmill and fuck each one’s brains out.
