Bucky was on-task and stayed that way. No wonder he had made such a great soldier - when he wanted to, the laser-focus was very much appreciated. But while he seemed single-minded, Thor appreciated the feel of the flesh under his hands, around his cock, against his body. The metal arm was just as much part of his beta as Thor's weapons were him, just not as easily left behind.

With a flash of lightning behind his eyes, Thor gave a single, deliberate nod, once he figured out where Bucky was going. The hesitation was cute from his pup, and Thor decided he'd reward that later. Let Bucky direct them for the moment, Thor knew he was inevitably the one in charge, and it was good to see that Bucky wanted it that way, too.

As Bucky dropped down on his shaft, Thor exhaled, his teeth and a mona dragging up Bucky's chest as the other fell onto him as neatly as a sword found its home in the shaft. For just a single moment, Thor went still, quiet, letting Bucky's groan fill the cave, work its way through his bones. Then, coming back to himself, Thor's left arm wrapped around his omega's shoulder from behind, the other gripping the underside of Bucky's thigh. Essentially, Thor had his entire body caught in a vice grip.

Slowly, Thor lifted Bucky up, the cool cave air wrapping around his shaft that was given up with a fight from the omega's ass. Starting slow, Thor's hips rolled up, his cock disappearing back inside the other, then rolling out, more coming out to greet the air. But it only lasted a second as Thor's rhythm began to pick up. The smack of his body against the smooth rock floor could have counted down a marching band. Not something he could keep up forever, but something he definitely wanted to let Bucky experience.