Chapter Text
Eridan was lying on his tummy, over a fluffy white blanket, messily scribbling on some random coloring book he had brought himself a while ago. He was little, well, not physically but mentally. He was wearing a purple with little white seahorses onesie, one of those crotch snap ones, which did a bad job at hiding his puffy diaper that was underneath it, which he also got a few days ago. His pacifier was clipped to his onesie, unused for now, just hanging as he coloured.
When Sollux entered the room, he could only see Eridan’s back, but he understood what he was doing. He knew about this “age regression thing” as humans called it. He was pretty messy at first, not knowing how to tape diapers properly or how to even talk to Eridan in this state without upsetting him even more, but he eventually got used to it, looking up tips on his husktop when no one was looking.
“Eri? You okay, baby?” Sollux’s tone was soft, very unlike of his usual one, but he didn’t want to make Eridan feel worse when he was already so small. Eridan quickly crawled towards his caregiver’s legs and made grabby hands at him. Despite Eridan being taller than him, Sollux picked him up with care, struggling a bit but managing to set a balance. He planted a quick kiss on his cheek as he began rocking him back and forth. “You hungry, little prince?” “Hungwy..” Eridan whispered back, he didn’t talk much when he was little but he made himself understood.
Sollux took that as a sign and began walking towards their nursery room. Now that they shared a hive, they had space for all the bullshit that they wanted in it. One of the things Eridan wished for his own nursery room, and there it was. The room looked extremely cozy on its own, purple walls with clouds on them, an adult crib which was big enough to fit Eridan, a few sea themed toys and plushies scattered around the room, a changing table with a box full of diapers that Sollux had just stocked.
Sollux slowly lowered Eridan into the crib, wanting to put his baby to sleep while he was getting the milk ready. That’s when the fussing started. Eridan’s eyes started getting glassy as a few tears ran down his face. “Daddy, don’t go! Don’t weave me alone!” Eridan was now trembling and full on crying. The thought of his daddy leaving him alone even for a second was way too much for him. Sollux immediately raised him back in arms, wrapping them even tighter around his little. “Shhh, it’s okay baby boy, daddy’s got you now. He was never gonna leave you.” He gently grabbed Eridan’s pacifier that was hanging from his clip and popped it between his lips. Eridan began sucking on it almost immediately, His cries finally settling down, as he understood that Sollux wasn’t going anywhere.
The gold blood set him on the counter as he began preparing the milk. Shortly after it was done, not too hot but not too cold either, just how Eridan liked it, he poured it into the bottle as he picked up Eridan from the counter and walked towards the nearest chair. He set Eridan in his lap and swapped the pacifier with the bottle’s nipple. Eridan began fussing again once his pacifier was taken away from him but as he started drinking he it all went away. Eridan drank all the milk with little gulps, a little of it dripping onto his chin, which was quickly wiped away by Sollux’s finger.
Once he completely finished it, Sollux placed the bottle in the sink and carried Eridan to the changing mat. He wasn’t that wet but he knew that Eridan would need an overnight one, especially after all that milk. He unsnapped the onesie and quickly untapped the used diaper, wiped him faster as Eridan let out some helpless whimpers, then slid a new thicker one under his hips and taped it. He snapped the onesie’s buttons back and picked up Eridan once again.
This time, Sollux wanted to make sure that Eridan wasn’t gonna cry again for the night, so he decided to let him make a decision “Eri, do you want to sleep next to daddy or do you want to sleep in your crib?” He pressed a kiss to his forehead as he waited for the boy to gather up his words. “N-next to daddy..” Sollux didn’t even wait and carried him to what used to be their shared bedroom. Sollux had one of those cozy human beds with a baby rail guard so it would prevent his little boy from falling down, as he knew Eridan would move a lot in his sleep.
Sollux lied down with Eridan on top of him, arms still wrapped tightly around him, slowly pushing his little’s pacifer against his lips. As usual, Eridan didn’t waste any time and started suckling immediately. Sollux pressed one last final kiss against Eridan’s forehead as he whispered “Goodnight, baby. Daddy loves you.”
That was one of the most calming nights Eridan has ever had.