As Derrick followed all the Ginger stable hands into the back, he found it unsettling to be surrounded by so many versions of... him. Well, not the him as he used to be, but of how he now looked. Homely, muscled, tanned, and with full length 10' horse hung cocks hanging limply between their legs.
Wait, what? Derrick did a double take at all the sausages hanging out, then looked down at himself only to find his own cock also out at full length, swinging from side to side as he walked. For whatever reason, it felt so natural that he didn't even notice it until he looked at it.
He then felt a hand on his shoulder. "Did you get your fill?" asked the other Ginger stable hand. "This is normal by the way, I think it's the aftereffect of drinking so much centaur cum, everybody's cocks just hand loose; you get used to it for a few hours."
"Andrew?" Derrick responded, relived his friend found him again. "What is going on, why did we all come back here?"
"Break time! The stable is cleaned but, we'll muck it again before supper. For now, it's time to relax in the break room." He looked down at Derrick's low hanging cock. "What's the matter? This is what you wanted isn't it? Otherwise you wouldn't be here... none of us would really"
Derrick looked down and picked up his now fully extended cock, it's weight was impressive in his hand. "Yeah, it was. I guess..."
Andrew smirked, and grabbed Derricks cock with one hand; Derrick could feel the heft of the cock change and it grew quickly stiff from the attention. "Look, it's not a bad life really. You have a solid body, we don't grow old, and the sex is.. well... let me show you," and with that, Andrew took his tongue and started to lick all around the glans.
Derrick on his part just froze and closed his eyes. He felt complete when he was working the shaft of the Centaur, but this was pure pleasure and never had feeling like this with his human cock. Closing his eyes, he just moaned as Andrew then went to his knees and took Derrick's impressively large cock into his mouth, bobbing up and down on the shaft.
Despite going in impressively far, the cock was just too long and stiff to go more than half way. Andrew did this for Derrick for a few seconds before letting the cock pop out of his mouth, then reached down and roughly grabbed Derrick's shaft. The change in pleasure to the rough grab with calloused hands made Derrick's eyes go wide, but it was still good in a different sort of way.
Leading Derrick by the cock, they went over by a hay bale as Andrew lay back down on it and guided Derrick's now slick cock up to his ass. Not needing any further invite, Derrick pressed in with ease, hilting his cock into his new friend. The sex was dirty and rough, but this turned both of them on more as Derrick reached his peak and filled Andrew up with his load after load of cum before collapsing on the sweaty chest of his Ginger friend.
"So? What did you think?" asked Andrew, still enjoying the feeling of Derrick's shaft slowly softening in his ass.
"It was great!" exclaimed Derrick, his mind still swimming in pleasure.
"Good, because it's my turn." pulling the sizable limp dick out, he grabbed Derrick and roughly switched spots on the hay bale, except Derrick was bent over on it. Then, Andrew gave a small smirk as he put his own identical shaft up to Derrick's ass and shoved in; hard and dry.
Derrick's eyes popped open and groaned deeply. However as rough is it was, Derrick's equipment went stiff again as Andrew built up pleasure and eventually released his load into Derrick.
"It doesn't matter what we do." Andrew explained, "Take it slow, or take it fast, your body is built to adapt and enjoy it," and finished his explanation with an extremely hard slap to Derrick's ass, leaving a hand print on his tanned cheek, of which it only made Derrick groan in pleasure again.
Andrew pulled out then sad on the hay bale beside him as Derrick turned around and sat with him. His ass hurt in more ways than one, but he loved the attention. As they both looked around the room they just sat back and enjoyed the view as the other stable hands were also enjoying themselves in various ways.