C17 What is this Feeling?

Out of reflex, his arms went around her in an attempt to hold her up and stop her from hitting his chest with full force.

The scent of flowers, vanilla and chocolate hit him all at once, overpowering his senses and leaving him frozen for a minute.

What is this feeling? He couldn't bring himself to pull away. He towered over her and her smallish, warm body fit perfectly in his arms