Mike considered the stall, then saw several huge horses looking out at him curiously. He'd never really seen a horse up close before, and now that he was a centaur, he was even more curious about them. "Is it OK if I look around? You have some beautiful animals."
The man grinned and nodded, then called back into the stable. "Liam! This centaur would like to meet some of your charges. Come out and give him a tour of the stable."
A scruffy-looking boy, maybe 14 or 15, came out of a stall near the back. He was filthy and wearing only a ratty loincloth, with matted, tangled dark hair and homely features. When he saw Mike, he grinned to reveal crooked, dirty teeth. "A centaur! Sure!"
The man nodded in approval. "Well, centaur. I want you to feel completely at home here. Anything you want, you get. I'll be back shortly with some friends." With that, he strode out of the barn.
Liam came over, still grinning. "Wow. You are really handsome! Do you like being a centaur?"
"Yeah, it's great. I never thought it would feel so powerful, so strong..." Mike blinked and frowned. He wasn't playing his character properly - but this was all just a game, anyway. As long as the others didn't find out, who cared if he broke character or not?
Liam motioned him to follow, and led the way to the nearest occupied stall. A big, dark draft horse about the same as Mike's equine portion snuffled at him curiously. "This is George. He's been here about 2 years." The next stall held a large shaggy donkey named Phillip, and the next a Belgian mare named, oddly enough, Luke. All of the horses had male names, despite a fair number of mares. This included a huge, glossy black Shire filly named Conner. Although easily the largest horse in the stable, she had a slightly gangly build that indicated youth.
"Conner is the newest one here. She's just 3 years old, and in her first heat. Can you tell?"
Mike sniffed the air but couldn’t tell anything. The young Shire whickered at him and then turned away from him to present her rump. Her black cunt lips squeezed and relaxed several times, and began to get slick. Liam smiled. "I think she wants you for her first mate. Have you ever mounted a horse?"
Mike blinked, then shook his head. "No! I mean, it's not right..." He looked at the glossy black rump and wondered what it would be like. After all, he was now hung like a horse. In this case, even that might not be big enough, though - she was so big she made even Mike feel small.
"I can match you up if you like." Liam patted Mike's side. "Normally costs ten gold to use magic, but the boss said you get anything you want. How'd you like to have your horse parts be a better match to hers?"
"Magic?" Mike blinked at the boy, a little scared, but also fascinated. "You could make me bigger?"
"Sure!" Liam opened the gate to Conner's stall. It was larger than most of the others, with plenty of room for Mike to enter. "I know you gotta be curious about what it's like."
Mike hesitated. He knew there was something wrong here, that he was probably heading into a trap. But what difference did it make? He was playing a realistic game of Dungeons and Dragons, but in the end, it was all still a game. Why not enjoy himself?
He looked down at Liam. "Well, your master said I could have anything I wanted. And what I want is..."