What it says on the tin. The Holmes brothers are utterly utterly normal under all the drama they shroud themselves in, incredibly intelligent, but otherwise normal. It's only when they're alone (or alone together) that they drop ALL their masks.
Lazing on the couch, watching movies, scrambling for the remote to quickly change the channel when a praticularly shitty one comes on (yes, they know which ones are the shitty ones), throwing popcorn at each other, giving each other charliehorses, which results in wrestling on the floor... totally and completely normal stuff like that (not per se these things, but you get the idea. No holmescest, just bromance.
Maybe the whole sharade is a game between them or something? One they live and breathe every day.

I'd like it if John and/or Greg (preferably both) find(s) out somehow. Feelings of betrayal, privileged to know the truth, not surprised by typical Holmes antics... whatever you want to write.

EXTRA EXTRA EXTRA cookies if Mummy tells them (in front of others) to stop being ridiculous.

Thank you!