Simon/Kieren/Rick in a polygamous relationship though, imagine:
The three of them watching horror movies together and Kieren not finding them scary at all, meanwhile Simon's jumping at every little noise and Rick's covering his face with a blanket every five minutes (≧◡≦)
Rick and Kieren going on rides at the fair together whilst Simon holds their coats and waits for them to get off because he's not a big fan of fair rides (●´ω`●)
Rick sitting in the back seat of the car with his arms folded, giving Simon and Kieren the silent treatment because Simon's the only one of them who can drive and Kieren called shotgun \(*^▽^*)/
The three of them attempting to cuddle together on the little bed in Kieren's bedroom ∩(︶▽︶)∩
Rick and Simon playing video games together whilst Kieren sits on the sofa painting them (´・ω・`)
Kieren ending up in hospital and Simon and Rick going mad with worry and taking it in turns to visit him (╥﹏╥)
Kieren always being the one who's smushed in the middle when they're taking selfies (ノ◕ヮ◕)ノ*:・゚✧