Being fully held down like that, especially by someone he trusted so thoroughly, just sent him deeper into that wonderful hazy space. He didn't know what it was, he didn't have words for it, but it felt a lot like staring into the Beacon. Like he was connecting to something that was both within himself and beyond himself. Whatever it was, he felt safe there. He felt like nothing could break through the barrier of warmth that Caduceus had built around them and for the first time in his life he felt like he genuinely just relaxed. His body, his mind. It all settled. The soft moans and gasps still fell from his lips unhindered, but his only real thought was how good everything was.
And then, somehow, it seemed to get better.
He felt the pressure, the feeling of being pushed right up next to his limit. Not quite all the way past them, but it was enough that it brushed up against them. He thought it might be too much, just for a moment, just until his body got used to it. He felt himself arch up and pressed down onto it before he'd fully processed the movement, and his breath came to a sudden halt. Gods, it was good. He breathed out a soft "Oh..." just a moment before Caduceus moaned and slammed into him. He felt the pressure on his wrists, the pulse inside of him, Caduceus' body trembling on top of him, and it was so close to being enough to get him off too.
Thankfully, some part of his brain was working well enough to hear Caduceus. The first few words might have gotten lost in the haze, but he heard the rest. For a moment he simply couldn't form words, but he was trying to pull himself back to the surface because Caduceus had asked him a question. He'd said he loved him. "Ich liebe dich auch," he murmured, the disconnect in his brain obviously still there because he could only remember Zemnian just then. But Caduceus would know, he was sure of it. "Ja, I-" He bit down on his lower lip and hooked a leg around Caduceus' hip to see if he could pull him any deeper. "I- oh, it's the only thing I can feel. What-?" He understood the effect, certainly, and Jester had drawn enough different kinds of dicks in his books that he understood the anatomy as well, but he didn't understand the how or the why. That was an issue for later Caleb. At that moment he just wanted to sink into utter bliss.
But he also needed to move. He was so painfully close and he felt like if he could just get Caduceus to rub against that place that made him see stars, he would get there. He let his eyes fall closed and rocked his hips up against him, his own hands still pinned and useless. He was right, though. It didn't take much. He had been right on the edge and all it had taken was that last little push before his body tensed and he spilled across his own stomach.
He was pretty sure he could just die there and it would be fine. Mostly, though, he wanted to curl up against Caduceus' chest and slip back into that wonderful space he'd found. He gave a half-hearted tug at his own wrists, trying to let Caduceus know he wanted them back, and then simply let his eyes fall closed. Everything would be fine. Caduceus had him, he'd said so. He just wanted to keep that feeling as long as possible.