Wonder Woman is obviously portrayed by Gal Gadot. This is my first attempt, if successful, I will submit further parts. Otherwise usual disclaimer, not my copy-right, fan fiction, everyone over 18 etc.
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Every 100 years, the amazons of Themyscira had to pay a tribute. To maintain their eternal beauty, strength and the land of Themyscira itself. Very few were privy to this secret. On the eve of summer solstice, every century, a being in the form of a man would arrive on Themyscira. Until he was satisfied, the amazons would please him sexually, and through those acts power would flow into Themyscira, sustaining the land and granting the amazons their strength and eternal life. They referred to him as the Black Cock God. Queen Hippolyta, her generals and a few other great warriors were required to satisfy his urges in the past, until the rise of Wonder Woman...
Wonder Woman was curious. Her mother and Artemis had filled her in. She knew a visitor was coming to Themyscira and she was to comply with all his demands. The fate of all of Themyscira rested on it. Diana entered the colosseum where they normally hosted grand events. Every single amazon was present, seated in the massive amphitheater, her mother was in a pavilion surrounded by her elite guard. The arena had various pieces of furniture scatter across, even a pool of water. At the centre was a grand throne and on it rested a beautiful specimen of man.
Diana was no stranger to opposite sex, having led a refreshingly satisfying sexual life. However, no man she had lain with was as beautiful, as chiseled and toned as the one in front of her. His ebony skin glowed with an aura. He watched her approach with a grin. She realized he was completely naked and then her eyes widened with shock. He had the biggest cock she had ever seen. Even the minotaur, whom she had spent many a satisfying night with was smaller. It was 16" long, 3" thick, piece of black muscle and her mouth salivated just from looking at it. As she reached him, she reflexively dropped to her knees, her eyes could only see the cock, nothing else. "Swallow, Princess" he commanded. He eyes locked onto his as she opened her mouth and swallowed the head. She moved her hands to massage the throbbing cock and position it.
"Stop, no hands. And please continue swallowing, I want to see how much the greatest Amazon can take." His voice was polite, but firm. Wonder Woman loved to be in charge usually, but once in a while, she loved it when a man dominated her. Nothing turned her on more, than being submissive, her secret pleasure. Diana slowly moved her mouth, taking down inches until even she started gagging. She was able to take 12", but she still had a few more to go. Black Cock God was smiling again, as he shook his head. She stopped. He carefully wrapped his hand into her hair and then twirled. Her hair was in a tight bun, but instead of a buckle, his hand was holding it together. He slowly started pushing her head forward, making her swallow inches.