He sighs softly, and huffily when Zerxus tenses. "You really need to stop that," he murmurs.

Then hooks his fingers around the necklace and pulls it around so he can look at the pendant.

Does he want to? No.

Is he going to not take advantage of something that overt, given his father's interest to this point? Also no. There are rules. This is one he breaks more than most, but he's not prepared to break it this overtly or soon.