[It's a relief to be honest, this lack of a protest. To say that he wasn't a little worried about this very thing would've been a lie, it's only recently that he's managed to get Helix comfortable with any display of affection, so being accepted like this... that means a lot. More than he might realize at the time.
The hiss doesn't go by unnoticed and he reluctantly ease off some so as to not crush the other, but the embrace stays. As long as Helix wants, as long as he needs, like always. ]
Hey... [Not the most intelligent thing to say but it's hard to think of anything else under this crushing weight of emotion - his voice is a little rough, a little choked off. ]