[Muttered, though he'll hear it pretty clearly when leaning in for a hug:] Of course I'm jealous...
[For a very very wide range of reasons at this point, some of which might be too sad to admit to himself (it's not like he ever thought he was Reign's only friend -- but Reign was certainly his.). Hearing about Reign's wide range of friends that even included humans stung in a way he wasn't really sure how to explain. He just knew it was irrational, and not really worth voicing.]
A younger sister... [What a weird impression Shell was getting at this point. She sounded rather young -- maybe she just had a very particular upbringing?] All right, I think I get it now. You tease.
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[For a very very wide range of reasons at this point, some of which might be too sad to admit to himself (it's not like he ever thought he was Reign's only friend -- but Reign was certainly his.). Hearing about Reign's wide range of friends that even included humans stung in a way he wasn't really sure how to explain. He just knew it was irrational, and not really worth voicing.]
A younger sister... [What a weird impression Shell was getting at this point. She sounded rather young -- maybe she just had a very particular upbringing?] All right, I think I get it now. You tease.