Jan my first "BDSM guy." Well, he knew nothing about BDSM, but he made me realize that I enjoyed being submissive. We were discovering this world together. We were reading forums and articles, ordering toys from sex shops, and he would occasionally experiment with different techniques that I'd shown him online. We learned about agreeing on limits, safe words, and aftercare. It was fun.

Once, he told me that he wanted to walk me like a dog in a park. I felt conflicted. On the one hand, I wanted to explore this new side of me, but on the other, I was afraid of getting caught. I didn't know how to handle that. I said yes, but only if we ensure nobody sees us. He agreed.

Krakow has a beautiful place called Zakrzówek (pronounced "Zak-sho-vek"). It's a park with a lake in the middle of it and some trails. It's popular among the locals and usually busy on weekends. We went there on Monday. He drove me there, and I undressed in the car. I put on a long coat to cover me until we find a secluded spot.

We walked for a few minutes into the forest. We found a spot where there were no people around. The grass was green and soft, and the trees were tall and thick. I looked at him and smiled. He smiled back.

"It's time," he said.

"It's time," I agreed.

Those were our codewords for starting the game. He grinned and slapped my face. I felt the sting on my cheek.

"Serve me, bitch," he ordered.

I took off the coat and gave it to him. My naked skin felt smooth and cool. The air was fresh and crisp, and the breeze blew gently against my bare breasts. I could feel the goosebumps rise on my arms, and my nipples hardened with anticipation.I looked up at him, waiting for his next command.

"On your knees," he said.

I got down on my knees. The grass was damp and scratchy.

He took out a leash and a leather collar from his pocket. He clasped the collar around my neck, tightening it just enough to make me uncomfortable. He hooked the leash to it and gave it a tug.

"Crawl," he said.

I started crawling on all fours. The ground was rough and hard. My knees were sore, but I kept going. I could feel the dirt and mud rubbing against my palms.

Suddenly, he slapped my ass. The slap came unexpectedly. It was loud and sharp. I felt the sting on my left butt cheek.

"That's for not keeping your ass in the air," he said.

He slapped my ass again, this time on the right cheek. It was harder than the first one. The pain was intense. My butt was red and throbbing.

"Let's play fetch!" he said.

He took a fallen tree branch from the ground and threw it into the forest.

"Fetch!" he commanded.

I crawled towards the direction of the branch. The dirt and mud stuck to my palms and knees. It was hard to move. My muscles were tired and sore, but I kept going. I found the branch and brought it back to him in my teeth.

"Good puppy," he said. He rubbed my head.

I realized I wanted to pee.

"I want to pee," I said.

"Let's find you a tree," he responded. He led me to a tree.

I stood by the tree, trying to hold it in. I couldn't believe what I was about to do. I had never peed in public before. The thought of someone seeing me made me feel nervous and excited.

"Go on," he said.

I hesitated for a moment. Then I raised a leg, like a dog, and felt the warm trickle of pee running down my other leg. The relief was immediate. The smell of urine was strong and pungent.

He watched with interest. It was the first time anyone watched me peeing. I felt so exposed and vulnerable. As I emptied my bladder, the thrill was almost too much to bear. I knew that if someone did happen to stumble upon us, they would see a woman naked and collared, on her hands and knees, peeing on the ground.

As I finished, he walked over and slapped me on the ass.

"You are a dirty little bitch, aren't you?"

We continued walking. We found a bench, and he sat on it. He looked at me.

"Lie!" he ordered.

I lay down on the ground. The grass was prickly and rough, and the mud clung to my skin.

"Good girl," he said.

He began rubbing my belly. His hands were rough and calloused. The feeling of his fingers on my skin made me shiver. I closed my eyes and savored the sensation. As he continued rubbing my belly, he moved his hands up to my breasts. He gently cupped them and squeezed them.

"You like that, toy, don't you?" he asked.

"Yes, Master," I replied.

He began teasing my nipples with his fingertips. He rolled them around, pinching and twisting them. I moaned softly.

"Sit!" he ordered.

I sat up, my back straight and my head held high. My legs were folded underneath me. He took a small bottle of soapy water from his backpack. He started blowing bubbles.

"Chase!" he ordered.

I started chasing the bubbles. They floated in the air, bobbing and bouncing in the breeze. They were bright and shiny, and they smelled like lavender and vanilla. I felt my heart pounding in my chest. It was exhilarating. I didn't care about the dirt on my knees or the scratches on my palms. All that mattered was catching those bubbles and popping them with my nose.

Once I caught all the bubbles, I returned to him.

"Good girl," he said, "you deserve a reward."

He stood up and pushed me deeper onto the ground from behind. He grabbed my hips, pulled me towards him, and entered me with his hard cock. He was rough and hard. I could feel his cock throbbing inside me. He began thrusting.

Then suddenly I felt the leather collar tighten around my throat. It dug into my neck as he tugged on the leash. The collar was so tight that I couldn't breathe. I gasped for air, but no air would come. I felt my face turn red and my lungs burn with every breath.

"You're such a worthless little bitch," he said, thrusting his cock.

He began to thrust harder. The sound of skin slapping against skin filled the air. The sound was wet and lewd.

"You're mine to fuck whenever I want," he growled. "I own you."

He let go of the leash. I gasped for air, my lungs filling with sweet, sweet oxygen. I coughed and sputtered, my chest heaving. The rush of blood to my head was exhilarating.

He groaned and shuddered as he came, his cock throbbing inside me. I moaned. My body was spent. I could barely move. I felt exhausted and sore.

He pulled out and wiped himself off. He gave me paper towels, "clean up, bitch." The game was over. I put on my clothes and wiped the dirt from my hands and knees.

For the aftercare session, we went down to the lake. We swam around, our bodies glistening with droplets of water. We splashed each other playfully. After the swim, we dried off and went back to the car.

"I can't believe what we just did," I said.

"It was amazing," he responded.

This was our first time engaging in this activity, but it certainly wasn't the last. Until the end of our relationship, we did it at least once a month. I have felt absolutely happy many times in my life, but now I understand that I never felt as happy as I did then in Zakrzówek, naked and collared, chasing bubbles.