*Note: What I meant for "diaper" in this short story is actually a cloth diaper used before disposable diapers existed.
In the middle of the night...
Wei WuXian: (hears WangXian crying in his crib) Hm?..
Lan WangJi: (also woke up) Milk?..
Wei WuXian: He had milk not long ago. He probably peed or pooped. (about to get out of bed)
Lan WangJi: I'll go.. (gets out of bed) You should at least get some more rest..
Wei WuXian: Are you sure?
Lan WangJi: (nods; makes WuXian lay back to bed; then goes to WangXian)
Wei WuXian: Okay.. (laying on their bed and was about to close his eyes but opens them wide after realizing something)
Wait, wait, wait, wait! He never once changed A-Xin's. I never even heard him change a baby's diaper before..
Wei WuXian quietly gets out of bed and takes a peak at the other room where Lan WangJi and WangXian are.
Wei WuXian: (sees Lan WangJi staring at WangXian)
Lan WangXian: (stares back quietly)
Wei WuXian: You're your father's son all right.
Lan WangJi: (deep in his thought; part of his face is covered in powder and the diaper doesn't look right on WangXian)
Wei WuXian: (notices the mess on WangJi's face and the diaper WangXian is now wearing then laughs) I knew it..
Lan WangJi: Wei Ying..
Wei WuXian: What are you two up to? A stand off of who will blink first?
Lan WangXian: (smiles)
Lan WangJi: I'm sorry.. (rubs WangXian's stomach) I made a mess and a mistake..
Wei WuXian: Don't fret, papa. Mama will teach you how to put on a diaper..
After that night, Lan WangJi became an expert in changing a baby's diaper...
Lan WangXian: (was brought to Cloud Recesses with Lan WangJi; laughing)
Cloud Recesses Students: (speechless)
Wei WuXian: (only one clapping) Wow! Perfect!
Lan WangJi: (just changed WangXian's diaper; sees WangXian's diaper is perfect and nods in approval)
Which left Lan WangJi's students at awe..