Note- this is just for fun! Also, I'm still trying to correct Sonic's personality, so bare with me please.( This is the sonic from the anime! But you're welcome to imagine another version as well) Having a lot of fun with writing, might actually make a one-shot! Maybe. There are more than likely a few spelling errors I looked over, so bare with me again. This took to fucking long
For sonic, I don't see it being love at first sight. this is because sonic is level headed, calm, and it's clearly shown how he acts around new people. He's not rude of course, but it does take a bit before he gets completely used to them. That being said, it's the same when you roll around. Still, he's not a jerk, but he just needs to get used to your presence. As a animal, it can be uncomfortable for them is someone new is where they normally hang out at, even if they don't show it, it's still there.
So, even when he does get used to you, it'll be a lot different. He'll actually start to go up to you and talk, not like he didn't before, but he enjoys it a lot more now. Not that anyone could notice. They just think it's the same ol sonic.
Now, up to the things that'll make him like you a lot more(maybe not in a healthy way): it could be a lot of things, maybe it was the way you were able to keep up with him, not speed wise. But his attitude. When ever he starts to wise up, getting cocky, you challenge him. He says how he's the fastest thing on earth, you say how shadow beat him that one time, and that there are millions of other universes out there. And you do it in the same cocky tone he speaks about in. Or how you always protect and care for his friends, how much you care for tails means the most to him, as much as he loves all of his friends, tails is his brother. So when he sees you patching he up after a the x tornado cashed, sonic will feel a sense of something, something he's never felt before. And dear God, when you take care of sonic is a nightmare for both of you, for different reasons; For sonic, it's because feeling you oh-so gentle touch on his skin makes him literally vibrate. While your reason is because he won't fucking sit still, but you figure it's because of him having a running craving. You couldn't be anymore wrong
Speaking of running, he will definitely make you run with him, even though you can never keep up. So he slows down a bit, not being with you exactly but a little ways away, just so he can tease you about how 'your almost there!' and when you scowl at him as he grins and Snickers. Kinda like in the first episode, where he's running backwards in front of team S, playing with them
Also, he gets unbelievably clingy, like, unreasonably clingy. when ever he's sleeping, or trying to sleep. If you walk by, he has no problem grabbing your wrist and pulling you on him. Even if your taller. He does not care, if he wants to cuddle, he will get those god damn cuddles. He will force your head to the nape of his neck, put his head on yours, and trap you with his arms. Normally, sonic would never do this, but the desperate need to now if your ok is a lot stronger than his shame for not giving you personal space. With sonic, you personal space is his personal space. You share bubbles
If your shorter than him, than good luck, cause he will use you as a arm rest. Tease you, pick you up like a rag doll, and all with that signature smug smirk. And it gives him an advantage to trap you to, when ever you try to get up from a cuddle, he'll pull you back. Curling above you as you whine about wanting to get up. He chuck, putting all of his body weight on top of you. Teasing you about how ' what are going to do about it?' And as you whine, and huff and puff. He will not move.
Now, if you get up for another reason, like going outside, or getting his friends. And that's when his more... Concerning side shows. He literally can not function when you out of his sight, his anxiety and possessivnes getting the best of him, he'll always run off to find you. The discomfort of you not there is unbearable. so when you try to leave his sight willingly. He panics, and uses the best trick in the book, manipulation.
" but i don't want you to get hurt! Eggman's been stepping it up lately, who knows what he'll do to you if he captures you! And more than likely, he'll use you as bait, and maybe we could get hurt trying to save you, there's no telling what Eggman's got planned. And you can never be to careful."
" And if your with me, you will never get hurt, no one will! So why don't you came back, and cuddle with me again."
Yea, it's really bad. And note how it wasn't a question, the last one. Even if you disagree, sonic will force you back to bed, saying how you've been overworking a lot lately anyway, and that what a better way to relax than to cuddle with your 'friend' sonic. He'll force you under him, curling above you as he keeps on saying it's so you, and your friends won't get hurt. But at this moment, he could care less about his friends, he just cared about you. But from your point of view, your scared about what he's doing. And how for just being a hedgehog, speed wasn't the only thing going for him, it was strength to. You never expected this, you thought back to the hedgehog you were talking to not even 10 minutes ago. Your best friend, the one that would lend a hand, the shoulder you could cry on. Was not who you were looking at, this was someone else.
Now, if you go back to him without a fuss, it will be a lot better! He'll pull you back to him, laying down with you. And will go back to talking, like you weren't just trying to leave him (in his thoughts). Speaking of his thoughts, in both instances. The one thing he will be thinking is; ' why are you trying to leave me?" And while on the outside he looks unbelievably calm. But on the inside he's freaking out, scared, and worried for what he did that would make you want to leave. Was it something he said? Something he did? Did someone tell you something about him? Who was it? Lover's quarrel? Ah, that had to be it.
He's so delusional that he won't even ask you to be his girlfriend, assuming that you guys are already in a relationship. So when you try to tell him that it's not true, he'll act like you're the crazy one
"you uh, feeling ok baby? Don't know how you could forget that we're in a relationship, but that's okay! I'll let it slide. This time"
" y/n, for the last time! It's okay that you forgot, I'll make you remember."
This guy has the biggest ego in the sonic universe, so he'll automatically assume, that again, your in a relationship. I mean, it doesn't matter if he asks or not; he saves you, is there for you, protects you, stands up for you, traps you from harm, feeds you, cuddles with you, and so much more! What's the point in asking?
And besides, he loves you so much more than those other. Things. You should be grateful he looks your way!
But, even though he'll save you from harm. Sometimes, he's the one that puts you in it just to impress you, only you. He'll never let you actually get hurt, just captured. And he'll save the day by swooping in at the last second. Getting your praise is one of the most important things in his life, something he couldn't possibly live without, something truly out of this world, or, universe.
And when ever your out, oh boy. Be prepared because he does not hold back, he'll always be touching you, it's so he nows you're still okay! You're not hurt. And he won't be subtle, he does not give two fucks about what other people think; He'll wrap his arms around your waist from behind as your looking at something, hold your hand, wrap his arm around your neck, kiss your cheek, forehead, and nose. Once again, he doesn't give a flying fuck.
He's also stupidly overprotective. He'll follow you around, and it's not like you could catch him at the corner of your eye or run from him. He's the fastest thing alive! And he's not stalking you! He's simply protecting you, wouldn't want Eggman to steal you away! Now would we?
There's not many things that sonic will lose his cool over, he's probably one of the most chill people you will ever meet. But, that doesn't mean he'd never go apeshit. And one of these things are people, people talking to you. Why are they around you? They shouldn't even be breathing the same air as you. He sees people that you talk to as a threat, even if their the least threatening person on the planet. He doesn't care, and he will gladly scare them away. Without you knowing of course, all he has to do; is look at them in the eye from behind you, glow dark, Make his eyes white, and bam! Their running off. But no one else sees this of course! He wouldn't want to ruin his reputation, now would he?
And when you two are alone, he'll plant doubts in your head about your friend or friends. Making you eventually believe that their not a good person, and it always works. He won't stop until it does.
" I don't really like this Joseph guy y/n, he's tried to hurt people in the past. What do you mean I'm lying? I've seen him do it in person! What makes you think that I haven't? I stopped him from doing it before, and I'll stop him from doing it again!"
A sigh, "i'm sorry y/n, it's just-i don't want you to get hurt, please understand that I'm only trying to help and protect you. And by doing that, I'm warning you of this guy before he does something."
" are you sure about this? I'm not so sure you should go out with her tonight y/n, or any other nights. What I mean is that she's not a good person, she manipulates people. I've heard she doing it! Why do you think I wasn't to happy with being 'introduced' to her by you?"
And even with all the lies, he truly feels like he isn't hurting you, he genuinely believes that he is just protecting you. He's not intentionally isolating you, nor will he call it that. He's just protecting you from the dangers of this fucked up world, and if he wants to shelter you. He will
But, even after all he's put you through, remember. He'll " always love you!"