I felt like writing this, someone please tell me why ?¿
Based off the headcanon (that I made up) that Yamaguchi still sucks his thumb in his sleep.
~*~
Y/N expected Tadashi to be asleep when she got back from her parents' house late on Saturday, but what she didn't expect was for her boyfriend to be sucking his thumb.
Yamaguchi Tadashi, sixteen years old, still sucks his thumb in his sleep.
And Y/N thought it was gosh darn cute, how his body was curled up into an arc like a baby as his cowlick shook with every breath he took.
But, at the same time, Y/N couldn't stand the look of her beautiful freckled-faced boyfriend so vulnerable and so she took a picture and sent it to Tsukki, climbing into bed next to her boyfriend and sitting with her back leaning against the headboard.
'Did you know Tadashi still sucks his thumb in his sleep?' She texted Tsukki, along with a copy of the photo she took and the dinosaur-loving freak texted back immediately.
'Yes, I bet you didn't know he still sleeps with a cuddly toy sometimes too.'
'whAT.'
~*~
This was so shitty but just a bit of funny for my baby Tadashi.