This comment is ridiculously late; I know I said I'd write one like, two days ago. So I apologise!
Anyway. This was so cute. I like how you took the simple concept of a couple playing Tap Tap and turned it into a story.
These were my favourite parts:
An erratic shake to the right, then left, then right again. They moved in a silly way, sitting there looking at the screen, both trying to stay in the seat they were in.
“Ah! Help me!” he yelped, missing the first arrow. She grabbed the phone, placing her hands over his as she shook the phone where the arrows designated. “Phew.” He breathed a sigh of relief as he continued playing, her hands still cradling the phone and his hands.
They made me smile, and I could really imagine them happening because you described them so well. Your dialogue was great and really helped to show how close they are.
I did notice one tiny error:
the boy who’s lap she was sitting in
That should be 'whose', I believe. But that's just me being nitpicky about grammar.
This was completely adorable! <3 I loved it bby! I loved the easygoing characters of both of them. ;D Since I knew ahead of time who they were it gave me a whole new perspective to the story. I could picture their expressions, their different colored hair tangling with each others and the cute romance they had going on. He obviously cares a lot about her just as she had. I love the simplicity of the plot of how you ended it so smoothly. I really enjoyed how it was about Tap Tap and how they both interacted along with it. <3 So so so beautiful bby. I will always adore the way you write.