I like the concept a lot, I truly do but the execution could use some work. I think your best bet is to get a beta reader to help you with the grammar and plot holes.

Selana looked at him and was about to crawl, but stop to see she has to crawl over Blaise. So she does this beautifully by holding in her laugh because the way he was sleeping. Harry almost ruin it by laughing really loudly then others would wake up, but he held it in. She was thankful for that. After he calmed himself down he cock his head to the side wondering why she was coming over to him. She finally made it over without waking the guys up.

Although this isn't a run on sentence, it sounds like it's just rambling on.
Should be:
Harry almost *ruined* it
After he calmed down he *cocked* his head

She gave out a groan of seeing them.

Not sure if you meant, 'She gave out a groan at the *thought* of seeing them.'

You have a hangover, so let me work my magic on you," She laughed at the 'work my magic' part. Harry rolled his eyes at his sister saying 'work my magic'. She placed her forehead on his and hummed a little until Harry's headache went away. He was still amazed at her magic skills.

The work my magic phrase seems to be repeated too many times.

That was all I could make it though :/

Yay you updated! I hope you are okay and this story is amazing :3

I like the story but damn... you need to get a beta. Its hard to read your sentences because sometimes they're missing words or you dont use the right tenses for example: past tense. I dont see any spelling mistakes so i guess thats alright, but PLEASE fix your writing, i really like this story ) I liked this chapter i cant wit to see what happens next!

I really really love the idea and the story

But usually i dont understand the words because of the grammar (no offence i love this story) but there are times where i have to read it again to understand that Harry did the action and Not Draco but ive read that it was Draco who did that action.

... Never mind my rumblings
Pls do update. :)

Hope you can find a Beta. :)

no no no i want more that was such a bad place to stop please update soon! :) i love it so far

I wonder what will happen when they realize what they did. Looking forward to the next update! _

cool

What's Ablert's relationship? Why are they so fond of cuddling? Is it because they think as a friend? What about what Albert thinks of them? What's Draco's feelings with Harry? I thought I saw something when he was describing about Harry? So many questions, not enough answers! Please update! I'm looking forward to it!

Lovely story! I like it thus far and am looking forward to more. Thanks for sharing!

Kinda c

What?! Who's going to destroy the building? And is Draco considering that Bridegett is really his raven? Plus is Sleana and Blaise going to be a couple? Please update soon! I really love this story!

cool

cool

I haven't visited your author page but I will guess that English is not your first language. I thought it wasn't so bad at first, noticeable but not too frequent, but as I was trying to get through this chapter it just was too many mistakes. I really highly recommend you get a beta or write in your native language and ask for help with the translation. Good concept for a story though, wish I could read it more easily.