They make me sick btw

#i know this post is supposed to have a sexual connotation but imo they're getting weirder than that#rocky lets grace observe his entire digestive process with an adapted x-ray machine#they make some slapdash endoscopy equipment so rocky can look down grace's esophagus and stomach#grace lets rocky pull a tooth for study because he's fascinated by the human body producing something that's similarly sturdy#to himself (also he wants to have it professionally embedded into his carapace as soon as they get to erid but shhhh)#rocky chips off pieces from his own mantle (his deformed legs are already brittler than the rest of him so it's not like it's hard)#also for “study” but is internally debating himself on how to ask grace if he's ever considered subdermal piercings#grace gives himself multiple surgicial lacerations so rocky can get a better view of his sinew and muscle#and document the (from his mostly inorganic perspective) insane restorative ability of human skin#maybe grace even lets some of them get infected on purpose so he can show off his immune system#anyways that being said#rocky is not a biologist and probably doesn't know the exact chemical make-up of his internal tissue.#so they're definitely shoving a heat protected spectrometer up his cloaca