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Childe can feel Zhongli's cock pulsating inside of him.
Long thick ropes of cum fill him to the brim--which seem to be endless--and the warmth and thought of Zhongli's fervent promises to breed him nicely elicit small muffled moans as he buries his face into the pillow to the side, his own cock shooting weak spurts of almost clear cum for he has cummed for the third time that night. He can practically feel Zhongli's seed painting the depths of his walls white--even to the point of reaching his stomach. It's going to be hell to clean up, but that's the problem for future Childe.
It's spearing him open, Zhongli's cock. Not like he's complaining, though. With how impressive that girth is and how the veins pop on its surface when it's rock hard, Childe has come to terms with his new status as an absolute size queen, so sometimes he just wants to kneel down and worship that dick. Preferably, with his own lips around it and be able to feel the weight of it on his tongue as the head forces its way through his throat. The thought of blowing Zhongli's endowed cock just makes his own twitch feebly, his hole fluttering around it with desire.
While Zhongli still has his teeth latched on Childe's shoulder and stills as he keeps pumping loads and loads of cum into him ( holy shit, he's still cumming , Childe thinks to himself when he begins to feel extremely bloated), the red-haired turns his head to the side where Zhongli's head is and peppers kisses on his crown, his two hands start roaming to touch every inch of the other's skin to anchor Zhongli on this plane with him. Thinking that he can render him that way makes Childe's chest swell with pride. He breathes his scent in with a smile.
Childe loves feeling Zhongli up, especially when he's mid-orgasm that his body tenses up from the pleasure of it. His shoulders, his back (and the dip where his scapulae are that almost feels like they used to be connected to a pair of wings of some sort because Childe can tell that he is an angel sent for him, no matter how hard he tries to hide his real identity), the small of his back, his hips, his juicy ass. This is the man he's come to love. At times, Childe finds himself questioning whether or not Zhongli loves Childe as much as he does because it doesn't seem like he needs to find his other half since his perfection constitutes to his wholeness already. He's so perfect. Flawless.
Post-orgasm is also one of the rare moments when Childe's insecurity peaks. For some reason, his head clears and gets immediately clouded again, but this time with so many things rushing in all at once. Around the campus, he's very infamous for being courageous for the wrong reasons, but here, in the safety of Zhongli's strong arms, the fear that he has in the back of his mind surfaces. He hates it when he's like this. He could've just returned to the present and enjoy the way Zhongli's cock so perfectly stretching him, but he--
"Childe?" comes Zhongli's hoarse voice, piercing through the murk that is his mind. He's looking at him right now, a hand coming up to cup his cheek and wipe the drying streak of tear. "Are you okay? Do you need some water?"
Looking straight into Zhongli's eyes, he can see the genuine concern in them. The light in his eyes never fails to amaze Childe. He's so much more than words can ever imagine to describe. So much more than the world can handle.
Childe smiles. "Yeah. I'm hella parched," he replies. "But, Zhongli, wait--"
Before Zhongli has the chance to sit up and pull out, Childe traps him between his legs, wrapping them around his waist and locking his ankles together as an insurance that he really doesn't. Zhongli blinks at that sudden move coming from Childe and then shoots a questioning look at him.
"It can wait. I want you close right now," Childe says, arms slowly shifting to wrap themselves around his neck. "Besides, you wouldn't want it to spill and go to waste, right?"
At this remark, Zhongli's eyes darken, the lust that's simmering perpetually in them for Childe resurfaces and makes itself known. Childe smirks at that.
"Okay," Zhongli replies curtly before pausing. "Then tell me what's bothering you."
"Huh?"
"Tell me what's bothering you."
Childe gapes at that. "H-How do you--"
"You had your thinking face earlier."
With this answer, Childe closes his mouth and sighs. He knows he can never hide anything from Zhongli. Ever the observant one, this guy.
"It's just--" Childe starts but pauses after that. He turns his head to the side to avoid seeing Zhongli's reaction to his words. "--it's just that I feel like you don't need me as much as I need you, y'know? I feel like you're whole on your own that you….you're never gonna need me. I know I must be so wrong to think of our relationship that way, but….it's scary. To be so unsure."
Finished with his sudden stream of words, he turns back to finally gauge any reaction from the other. At first, he looks part inscrutable, part lost in thought if his knit of eyebrows is any indication. Then he looks sympathetic, eyebrows shifting and eyes zeroing back onto Childe's.
"Look. I am whole on my own. That much is true," he says. "But, that does not mean you are insignificant. You are the most important chapter in my life, Childe, for I love you and only you. I want you to be by my side." He smiles and holds a hand up close to Childe's face, brushing his sweaty bangs away from touching his eyes. " You're all I need. Always."
With that, Childe tears up and starts sniffling. The weight--it's gone now. He's so relieved that he can't help but cry. Zhongli embraces him and lets gravity overtake his whole being, their sweaty and sticky-with-cum bare chests touching. Childe bears with the weight of Zhongli's body pressing down on him. He'll bear it all for Zhongli.
"Thank you for telling me, Childe. It must've been hard for you to do that," he says softly next to his ear. "It is okay to be insecure. It's a part of you; it's your imperfection that also makes you whole on your own. I wouldn't want to change a thing about you."
Sobbing harder, Childe simply nods. He loves Zhongli so much , and Zhongli readily gives back as much.
And eternity itself won't ever be ready to bear the brunt of their everlasting love.
After Childe stops crying, Zhongli untangles his arms and then his legs around his waist before proceeding to sit up and raise those legs up and rest them on his shoulders. Slowly, his hips pull back to pull out...wait, why is he--
"W-Wait, Z-Zhongli-- ah! I thought….I thought we're done for the day!"
Pushing back his bangs with one hand, Zhongli licks his lips and smirks oh-so-smugly.
"Really? I've never said that I was finished, though," he remarks, one of his hands thumbing at Childe's swollen rim that is stretched so snugly around his dick. Childe shivers at the intensity of Zhongli's hunger that hits him like a freight train. "I have to fuck my conviction into you so you'll never forget. Watch closely, okay, love?"
Childe's rim twitches ever so slightly at that. It quickly rekindles the heat in the pit of his stomach, now burning so brightly he can feel it searing his being.
Throwing his head back at another particularly hard thrust that Zhongli delivers, Childe moans loudly as his hands move to grasp the sheets. Zhongli's hand flies down to the base of his stomach where a bump disappears and reappears again and again--a clear evidence that he is fucking Childe into the mattress so good that he's crying again, overwhelmed with pleasure and pain at the same time.
It's animalistic. It's raw.
Exactly the love they both like.