Veronica Sloan 
Cuckolded By The Futanari [EPUB ebook] 

Amanda's never been to a party as wild as this. Her husband is playing a high-stakes poker game with his boss Joni and her feisty female pals, and he's promised to give away his wife if he loses. Soon Amanda learns their shocking secret: Joni and her gang are futanari! When Bernard loses, he's going to be cuckolded by each and every one of them… much to his wife's delight.
~~~~~ Excerpt ~~~~~
Bernard pointed an accusing finger at Joni. "You told me five-thousand!"
Joni shrugged. "I'm sorry, Bernie. It must have slipped my mind…"
"I don't understand, " Amanda said. "Does that mean Bernard can't play?" She looked at each of the women and then her husband. Bernard was an island, male and red-faced and big hands clenched into knots.
"Of course he can play, " Joni said peaceably. "It just means he has less to play with."
"I'm sure he's used to it, " Bobbie chuckled.
Nasty drew near to Amanda, hugging her with her body. "It is not as good, " she explained. "Joni is always betting big."
"So the game is poker?" Amanda asked.
"We play all sorts of games, " Joni replied. "Poker, pool, truth or dare…"
Bernard shook his head. "I knew it. This whole thing was just to make me look stupid. Nice, Joni. You're a real class act. Amanda, let's go."
Amanda was caught between her husband's angry scowl and the curious faces of Joni and her gang. But before she could set her drink down, before she could even move, Joni raised an elegant hand. Her voice lifted above the soft music that wafted in from the bedroom, her tone confident and seductive. "Why don't you pour a drink?" she suggested. "Sit down and I'll explain the stakes."
"No, " Bernard said.
"Okay, " Joni said, without an ounce of his bitterness. "You can stand and I'll explain. What we do here is trade favors. That's the real prize of the night. If you win, I'll do something for you. If I win, you do something for me."
Bernard arched a skeptical eyebrow. "Just like that, huh?"
"Absolutely like that, " Joni replied. "Remember Vanessa Hugh? That lovely little redhead that was always jetting off to Hong Kong?"
"Yeah, " Bernard said. "Now she's running the eastern office. You're saying that's because of you?"
"A good word with Joni goes a long way, " Bobbie said.
"So if I take the pot, " Bernard went on, "you'll give me whatever I want?"
"Within reason, " Joni said. "I assume you want me to step aside and let you run the company."
"That's a big ask, " Bernard said.
"But easy to do, " she replied cheerfully. "When the old man retires, all I have to do is keep my name out of consideration. I'll give you a recommendation and let you put your best foot forward."
Amanda held her breath. Joni's casual offer was everything that Bernard wanted. For years he'd clawed his way to the top of Ludibrium's food chain, making deals and currying favor with all the right people. If there was the slightest chance that Joni was telling the truth, Amanda knew her husband would jump at the chance.
"Okay, " he said slowly. "What do you want?"
Joni drew her fingertips over her crimson lips and glanced briefly at Amanda. When she smiled, Amanda was compelled to smile back. "I'll think of something, " she said.