Eridan clenched his fists, his breathing growing ragged as a fresh wave of anger washed over him. It was always his fault, he was always not good enough, not proper enough, not perfect enough.
He bit out, “I have been nothing but an ordinary, respectful apprentice for a year—not that you appreciated it. So fuck you.”
“Mind your tongue, Eridan,” Castien said, his voice cold as ice, his telepathic presence darkening.
“Or what?” Eridan murmured, leaning in and speaking almost against Castien’s mouth. His heart was beating so fast he felt breathless. “What are you going to do to me?” He could taste Castien’s anger. It was exhilarating. “What happened to your ‘I can’t feel emotion’ shit, Master? Are you slipping?”
Castien slammed their mouths together.
Eridan moaned and bit his Master’s lip. It wasn’t a kiss. It felt like touching lightning, like a fight, their mouths angry and hungry, years of pent-up want and resentment unleashed, teeth everywhere, Castien’s firm body pulling him tightly to him as he tongue-fucked Eridan’s mouth like a starved animal.
Eridan could only take it, his mind spinning, his body tingling all over, his mouth oversensitive. Every swipe of his Master’s tongue sent sharp shocks of want between his legs, his cock hard and his hole tingling with need, aching to be filled.
“Master,” he breathed.
Castien’s mouth moved to his neck, sucking and biting, his hands gripping Eridan hard.
Eridan moaned, shivering and pressing closer, needing more. This felt right, he was his Master’s, no one else’s, he needed this, needed his marks, his mouth, and his body.
“Master,” he gasped, fumbling between them. He groaned, a trickle of slick running down his inner thigh as he palmed Castien’s thick cock through his pants. “Want you.”
Castien went rigid against him, his powerful body vibrating with tension. Eridan could feel him trying to get control over his body and pull away. No. He wouldn’t let him, not this time.
Eridan brought his mouth to Castien’s ear and whispered, “Fuck me.”
Castien’s body shuddered.
“Come on,” Eridan said. “I need you, Master.”
He was turned and thrown onto the bed. In an instant, Castien was on him. Strong hands lifted his robe, then yanked his pants and underwear down, leaving him naked from the waist down.
At the sound of a zipper being undone another gush of slick trickled out of his hole. Fuck, he couldn’t believe it was finally happening. His composed, civilized Master was going to simply stick his cock into him, just like that. The thought was incredibly arousing.
Eridan pressed his flushed cheek against the bed covers and lifted his ass for easier access.
Something blunt and thick pushed against his slick opening. His Master’s cock. Eridan gasped and pushed back.
“Ever so impatient,” Castien bit out before pushing slowly into him.
Eridan moaned, relief like no other hitting him as the emptiness inside him was finally filled. “Figures that you would criticize me even when you’re balls deep inside me, Master,” he managed, trying to sound normal and not at all like he was losing his mind from how good it felt. Castien’s cock felt unbelievably thick, stretching him to the limit. He wasn’t sure why he was surprised—it was as big as the rest of Castien’s body.
“I’m not balls deep yet,” Castien gritted out.
Oh fuck. That should have intimidated him, considering that he already felt like he could feel his Master’s cock in his stomach, but instead, it caused another gush of slick. He wanted it. He wanted everything his Master would give him.
Finally, after what seemed like forever, his Master bottomed out, the fabric of his slacks pressing against Eridan’s bare cheeks. Eridan moaned in bliss, his eyes rolling to the back of his head. It felt so good.
Castien pulled out and slammed back in.
Eridan cried out.
The rest was something of a blur. Eridan was only vaguely aware of how loud he was being—too loud and too eager—but he didn’t seem to be able to control himself, pushing back on his Master’s cock and whining when it hit something inside him just right.
Soon, there was only the obscene slick sounds of a cock moving in his hole as their bodies moved together, fast and hard, Eridan’s world narrowed to the cock inside him and the heavy, muscular man against his back fucking him so good, their bond pulsing with the sense of finally.
He lost himself to the sensation, his moans growing in volume as Castien’s thrusts became harder, faster, his cock brushing against that spot inside him over and over and over. He couldn’t—he couldn’t—
His Master’s hand wrapped around his cock and stroked.
The force of his orgasm caught him off-guard, making him shout as pleasure flooded him. Eridan threw his head back, toes curling, body shuddering and squeezing around the thick length in him as intense pleasure spread from his hole and his cock to the rest of his body, overwhelming his senses.