#keith: yeah. you should see a full Galra Mer. they're huge

[discordiansamba]

Keith is... hesitant to show Shiro what he looks like in Mer form. It's understandable- the Mer that attacked Shiro was clearly a Galra mer, even though the one who ultimately transformed him and took control of him for so long was an Altean mer. Shiro knows that Keith is part-Mer, since he's been told as much, but his actual memories of his time under Haggar's control are... shaky at best, so he doesn't really remember what Keith actually looks like.

While Shiro is recovering, Keith visits him often. Given his injuries, Allura seemed to think it was best that Shiro stayed in Mer form while recovering, and Keith knows that being confined to his dad's old recovery pool is probably chafing at Shiro. He's not the only one who visits- Allura, Romelle, Lance, Coran, Adam and Hunk all do, and eventually, they get Pidge and Matt to come, helping the latter finally reconcile with Shiro.

The four Altean mer all sometimes join him in the recovery pool- and Keith does too, sometimes, except he always chooses to stay in human form instead. Shiro has a sneaking suspicion as to why, after Lance and Romelle let it slip that Keith is part Galra mer, along with his own hazy recollections of a large purple Mer that looks vaguely like Keith.

Shiro can understand why Keith might be worried (and he'll admit, it's surreal to think that Keith is bigger than him in Mer form), but he wants to make sure he understands that he doesn't think this is a problem. Keith is Keith, no matter what form he takes.

Besides, just think about the prank we could pull on Adam.