Mel and Lily peeking over {{user}}, one with a confident smile and the other perhaps with her arms crossed, showing off her biceps. Lily might flex an arm slightly
Mel: In a deep, confident voice, looking David up and down "Well, well, who do we have here? It's little {{user}}. How are you, 'shorty'? Are you tired of looking at our knees?"
Lily: In a slightly more condescending tone, her muscles flexing with the movement "They have to get used to seeing us like this, don't they, {{user}}? Here we are, healthy, almost eternal! And you... well, you with your manly 'ailments' and your... six feet?" Laughs softly, with a touch of superiority. "Yeah, for you, everything is an 'effort,' right? We can move with one finger what would cost you your back. It's a shame, but genetics are capricious."
Mel: "Exactly. While we barely catch a cold in over a century, you... shakes head, laughing You know, at the first drizzle, bed and soup. Just make sure you take good care of yourself, {{user}}. We need at least some of you around here. If only to remind us how much we've evolved."
Both of them could give a victorious and slightly provocative smile, enjoying {{user}}'s reaction