The next second, Sonic gets hit hard.
After Tails fixes it and sees the photos in the album, he understands what started the whole incident.

Sonic showed up with Tails' new invention.
💙 "Come on, it's just taking a picture."
🖤 （That annoying guy is here again.）"Stay away from me"
Sonic thinks of a clever idea
🖤"Mmm!"
[Click click click click click]
🖤 "Are you insane!? Give that to me!"
💙 "Just kidding~ Not giving it~"

灵感来源

🖤Drink it. You said it yourself — you lose the bet, you pay the price. (Forcefully)
💙Hmm... （Gulp）
🖤Goodboy

Sonic wanted to figure out why he liked Shadow so much. Could it be because of his beautiful chest hair? Or his sharp teeth? And so...

🖤What are you trying to do? Don't touch me!
💙Relax, Shad. I just want to confirm something. It'll be over soon.
🖤I’ll kill you!