David is transformed into a skinhead slave

David had been Kurt's slave for three months, Kurt being a 35-year-old skinhead with a shaved head, 20-eyelet Doctor Martens boots, and red suspenders. That afternoon, Kurt had summoned him to his apartment in Vallecas.

"On your knees, pig," Kurt ordered from the sofa, lighting a cigarette. David immediately knelt down, feeling how the XXL plug, 8 centimeters in diameter, pressed against his prostate with each movement. The steel chastity belt tightened his balls, and the 12mm urethral sound traversed his cock from the inside, causing him a mixture of constant pain and pleasure.

"The boots. Lick them clean with your tongue."

David crawled up to Kurt's black Docs. His tongue trembled as he stuck it out and began to lick the tip. The taste of old leather, street dust, and dirt invaded his mouth. He passed his tongue over the sides, swallowing saliva mixed with filth. The white laces were yellowed from use, and he had to suck on them one by one while Kurt laughed.

"Good, whore. Now open your mouth."

Kurt took a deep drag on the cigarette and dropped the ash directly onto David's extended tongue. The bitter, hot taste burned his palate. He swallowed with difficulty, feeling it go down his throat.

"Swallow, cunt. Everything."

For the next half hour, Kurt used David's mouth as an ashtray. Ash after ash, the slave swallowed while tears fell down his face. When Kurt finished the cigarette, he extinguished the butt on David's tongue.

"Mmmmfff," David moaned with his mouth open, feeling the piercing pain of the ember against his tongue. The taste of burned tobacco and ash made him nauseous, but he swallowed the entire butt as he had been trained.

"Good dog. Now let's go for a walk."

Kurt put a leather collar with spikes and a heavy chain on him. "You're going to walk on all fours down the street to the skinhead bar. And when we arrive, everyone will know you're my slave whore."

They went out onto the street. David crawled along the sidewalk while Kurt pulled on the chain. People looked at them with disgust and curiosity. The plug moved with each step, fucking his ass while the chastity belt jingled. The sound rubbed against the inside of his urethra, keeping him in a state of painful constant arousal.

They arrived at the "88" bar, a known skinhead meeting point. Kurt entered, pulling on the chain, while David followed on all fours. Inside, there were a dozen shaved heads drinking beer.

"Look what I have," Kurt announced. "My new skinhead slave."

He took them out to the backyard, where more skins were smoking. Kurt unzipped his pants.

"Time to piss, whore. Open up."

David opened his mouth while Kurt started pissing inside. The hot, salty stream filled his mouth. He swallowed and swallowed while the other skins laughed and took photos. The piss seemed to never end, spilling over the corners of his lips, soaking his t...