Well, it's not bad...I actually like it.

BUT, you seem to have a problem switching POVs

example:

"No." And just like that, he was on top of her, covering my mouth with his.

- and -

He pumped furiously inside of her body, not getting enough, and when we both were on the brink, he slowed down, leaving the sound of their heartbeats as their music, before he picked back up the pace.

You are using both first person and thrid person POV in the same sentence, and it makes it very awkward.   Using 'he','her' and 'we/my' in the same sentence throws the reader off.  Not to mention it grammar nazis hate that type of thing.

Please don't take offence.  I am simply pointing out your mistake so that you can fix it before someone else is rude about it.

Aside from that, it's a nice little piece of smut.  Keep it coming...hehe.