Chapter Text
The youngest of the Wayne boys padded down the hallway, his destination clear—towards his father's and the Omega's bedroom. The smell of an Omega in heat that was currently pregnant and lactating ambushed his senses the nearer he got to the room.
The door was ajar, opened, and the light from inside spilled out into the hallway. Damian entered the room and found Kalel sitting in the middle of the bed.
"You should be sleeping," Damian murmured, his voice low and gentle. He took of his jacket and shirt, throwing it to the couch on the side.
Kalel looked up from his book, smiling softly as the golden lamplight danced across his face. "I'm only finishing this novel Jason recommended," Kalel answered, closing the book and putting it on the desk beside the bed.
"Tsk." But Damian's eyes crinkled as he moved closer to the bed, Kalel patting the left side of the bed. Damian halted, unzipping his pants and underwear and shucking it away before he climbed onto the bed. Damian sighed, skin to skin contact had his instinct purring, fire ignited below his skin.
He settled himself beside Kalel, his head nuzzling the Omega's swollen chest. At three months pregnant, Kalel wasn't showing yet. But Damian—with his hand roaming the Omega's stomach—could feel the firmness of the skin.
Kalel carded his fingers through Damian's inky black hair, humming.
"Can I—" Damian trailed off, mumbling the last part against Kalel's chest. He bit the loose button on Kalel's night shirt.
Eyes meeting as Kalel looked down and Damian gazed up. Sky blue eyes on forest green. The eighteen-year-old young man's grip tightened on Kalel's waist, fingers pushing the waistband of the underwear Kalel wore. He murmured his request again, lips brushing on Kalel's covered breast, feeling the wetness of the lactating nipple. He nuzzled, the erect nipple bumping onto his lips. "Can I fuck you, Kalel?"
The scent of milk and the heady Omega heat aroma enveloped Damian. His Alpha instinct screamed at him—fuck, claim, and breed.
Kalel combed through Damian's hair, "Of course, you can, my baby."
Damian's breath hitched.
His hand that was on Kalel's waist finally found Kalel's hardening cock; he gave it a pump as Kalel unbuttoned his nightshirt.
Swollen breasts—pink, erect nipples leaking milk, Damian's eyes blown wide as he stared at his father's Omega lactating. Kalel cupped his left breast and guided Damian's towards it. Kalel gasped as Damian's tongue touched the nipple. Damian sucked softly, looking up at Kalel.
Damian's eyes closed in pleasure as a burst of sweetness hit his tongue, making him shiver. His tongue circling the raised nipple, tugging on it slightly with his teeth. The liquid flowing from Kalel's nipple to his mouth, down his throat.
"Just like that, baby," Kalel cooed, and Damian continued jerking off Kalel's cock.
Kalel massaged his right breast, twisting its nipple and gasping at the same time Damian bit on him. The slurping sound filled the bedroom, along with Kalel's soft gasps and Damian's grunting.
Damian started to grind his hips against Kalel's side of thigh. His hard-on straining against Kalel's thigh, feeling the wonderful friction against his cock and Kalel's unblemished skin, begging to be let out and fuck the Omega on his father's bed.
His father's bed—the forbiddenness—sinful and intoxicating.
"Fuck," Kalel moaned when he came on Damian's hand. He shivered, hand gripping Damian's hair too tightly.
"You came from a handjob and nursing your Alpha's youngest son." Damian pulled away from sucking the milk, lips curled in a feral way and eyes glinting under the dim lights.
"Dami, yes, baby," Kalel sounded desperate.
"What do you want me to do, then, Kalel?" Damian asked, lips ghosting over the abandoned nipple.
"Fuck—fuck me, baby."
"Say that again. Mother."
It was like a gunshot that went off—Mother. Damian had never called Kalel that and now using it had Kalel trembling in lust.
Kalel cried, tears filling up those blue eyes. "Fuck me with your cock, Damian, baby. My son, my love."
Damian didn't need to be told again. He immediately ripped Kalel's own night shirt, buttons flying everywhere in the room, the underwear tore apart. He maneuvered the older man, pulling Kalel atop him. Damian sat on the bed, back on the headboard, as he slowly sank Kalel into his hard cock. Tanned skin on pale, white skin, Damian smiled wickedly at the view.
His hands spred on Kalel's waist.
Kalel threw his head back, feeling inch by inch of his stepson fill his ass. Hands gripping Damian's shoulder tight.
"Fuck," Damian said, pulling Kalel closed—mouth latching on Kalel's nipples. He sucked on the left breast, greedily drinking the milk while massaging the other breast. Then he moved to the right, finding it neglected and full of milk, heavier than the other.
Kalel bounced on his stepson's cock, his own cock leaking. He shuddered, whimpering Damian's name over and over again.
"Ugh, Dami, Dami."
"My beloved," Damian's voice rumbled.
He pulled Kalel's head, crushing their mouths in a heady, sensual kiss. Wet and full of tongue. The milk he just drank he shared with Kalel. Tongues twisting, Damian mapping Kalel's mouth with his tongue. His other hand finding Kalel's waist, holding it, directing it to move Kalel up and down. "So good to me," he whispered between kisses. "So tight, so hot for me."
Kalel clenched and unclenched around Damian's cock, the cockhead pushing against Kalel's prostate.
Kalel groaned into Damian's mouth, Damian swallowing the sound with a kiss. He came between them, cum landing on his and his stepson's stomachs.
But Damian wasn't finished—his hips meeting Kalel's slowing bounce. His cock buried deep inside the Omega's ass.
"Mark me, Dami," Kalel rasped. "Please."
Kalel pulled Damian into a kiss. His tongue twisting with Damian's, moaning everytime Damian's cockhead pushed into his sensitive gland. His hand gripped Damian's nape tightly, shaking.
Damian moaned, "Fuck Kalel, my Omega." He couldn't stop it. Flipping their positions, Damian laid down Kalel on the bed. His hips piston, cocking in and out of Kalel's ass like a precision machine. His thrusts were quick and deeper—Kalel wrapping his legs around Damian's waist.
"Ana uhibbuk," Damian rasped against Kalel's ear.
"Wha—"
"I love you," Damain repeated, lips on Kalel's right shoulder, teeth hovering above the skin as Damian pulled his cock out of Kalel's hole. Then, Damian pushed in, his cock thrusting in and out of Kalel's ass. Damian leaned forward more, making his cock go deeper inside Kalel. He sank his teeth into Kalel's skin, teeth breaking into it and drawing blood. The Omega pheromones ambushing his senses, the metallic taste on his tongue making him shiver with lust and satisfaction.
"Fuck, I hope it takes," Damian said, giving a particularly hard thrust and emptying his cum inside his stepfather. Despite being already pregnant with Bruce's child—Damian hoped. After all, Kalel was an alien given to them by the universe, an extraordinary feat, and what is carrying multiple Wayne babies inside him?
Kalel's eyes rolled, fervently saying Damian's name as he came again. Damian braced himself atop Kalel, arms caging in the Omega on the bed, sweat pouring down from his forehead down to Kalel's face.
The look on Kalel's face—blue eyes teary, face red, his mouth slightly opened breathing through it. Red blood on his white neck, fresh binding mark on his shoulder.
"Yes, it'll take, beloved," Damian smirked, pulling out of Kalel. Kalel blinked blearily, making grabby motions towards Damian, who immediately plastered himself beside Kalel.
"Your father will know we had sex in our bed," Kalel's tone serious but his lips curved up.
"I bet Father knows about our attraction to you." Damian's fingers found Kalel's hole, fingering it a bit. The hole loosened, slick with Kalel's slick and Damian's cum. He pushed the combination of liquid further inside Kalel. Then he nudged Kalel's legs wider, letting his cock brushed against Kalel's ball and finally sitting between Kalel's ass and then slowly entering again.
"I want to sleep with my cock inside you, Kalel. Can I?" Damian asked, childishness seeping into his voice.
Kalel laughed. "Of course, baby. You can do everything; you don't have to ask."
"Even sucking your tits while you sleep? Even fucking your ass while you sleep?" Damian whispered hotly against Kalel's ears. "Even calling you Mother while I fuck you senseless?"
Kalel reddened, nodding.
Damian smiled, softly, landing a kiss on Kalel's forehead. "You're my perfect Omega." Damian's cock twitched inside Kalel's ass; he subconsciously pushed deeper.
Kalel moved, grinding down on the cock inside him. "I want to be like this forever."
"No need to want because this is yours now." Damian fondled Kalel's tits. "You wake up with cock in ass—my brothers would want to fuck you, too."
Kalel's eyes darkened. Damian grinned, kissing the Omega's mouth, nipping Kalel's lower lip.
"I'd like that," Kalel shyly confessed.
"Yeah," Damian agreed. "I like that, you drenched in Wayne's cum. Fuck, I love you so much."
"And what else, baby?" Kalel encouraged, making a gyrating motion as Damian slowly started pumping his cock inside Kalel's ass.
"Fuck—I want, I need you to carry my child. I'll impregnate you, making you pregnant every year. I'll fuck you until the shape of my cock is carved inside your ass."
Kalel pulled Damian in a kiss, a string of saliva left when they pulled. "Yeah? I like that. Like carrying Wayne babies. Your baby, Bruce's baby, Dick's, Jason's and Tim's."
"My perfect Omega. I love you so much, Kalel, I'd burn even death for you if it tries to take you away from me." Damian squeezed Kalel's waist.
There was a dark glint in Kalel's blue eyes, he stroked Damian's cheek. "And I love you, too, Damian. My baby."