Not bad for a first time it looks like as a Sonic Fanfiction writer your going in the right direction

Sounds like Amy's stealing Knuckles' electricity. Maybe Sonic runs from Amy because he's watched her sleep and got grossed out by her drooling. Shadow makes a very interesting mysterious monster.

I like it!

Cool! That was so cute!

Pretty good for your first sonamy story :)
There were quite a few funny parts, like when amy told eggman to go to fat land. Haha, I laughed so hard. Cute ending too.
The plot idea was pretty good, the only thing I have to say is, don't put your font in italics and if you are moving to another character then put a line like this.
Amy said, "blah blah blah," and went off to find sonic.
-
Sonic was working on blah blah blah.

That way it's easier to distinguish than the first letter being bold. Also, work a little more on character development. Tell how the character feels and let their feelings develop over time. For example, sonic just can't want to be friends with amy one second and love her the next. You know?

You have improved a lot :) I can't wait to read more from you!

Hello. I am Princess Teressa, but you can call me Tess for short. I suppose this story was good.

Farewell.

Not bad story. I think you can come up with another great one.

That was very good for your first Sonamy story. I personally liked when Amy told Eggman to go to fat-land. I nearly spit out my drink reading that part. ^_^

Nice story!
The only complaint I have for this is that...the title is too bland, ya know?
Great job, though!

very nice, i hope to see more of your stories :)

kewl! great job!