As Frigg moved, Odin watched her closely, taking a drink from the horn only to give him the excuse to look slyly over the rim. Not at Frigg precisely, but at each curve, her simple movements enhancing them and fueling his imagination. As she moved the chair just a little closer, he smiled into the horn before turning to give her his direct attention when she chose to respond.
He stifled a laugh at her feigned innocence. There was something in her tone that told Odin it was an act. To his mind, it meant one of two things- either she was trying to play the dutiful daughter, wanting to convince her stepfather that she would never do such a thing as drink actual mead, or she was trying to impress him for another reason.
Odin was willing to go out on a limb that it might be the latter.
He was young, and still fairly carefree, not yet gaining the wisdom that would come to him in time. Even so, he was no stranger to reading the signals of women, or convincing them if the need arose.
As he passed the horn, he tilted an eyebrow then the corner of his mouth followed. "Don't worry, I won't tell your mother. No one need be the wiser." About anything, he thought to himself.
Jord would probably disagree.
As he placed the horn in her hand, he let his fingers brush hers before settling back to await his turn again. "Though, this being your first time, I recommend going a bit slow. It can easily overpower the senses, even among those of us more...experienced."