What I envision for Grace is this. He would have been a normal guy if he'd stayed on earth. As a baseline, he is not a monsterfucker or an alienfucker. He's not even really into other humans because he can only get the hots for someone if they've established a soul-baring level of emotional intimacy first, which is impossible because he's allergic to vulnerability. On the flip side this means that on the off chance that he establishes a soul-baring level of emotional intimacy with someone, he's going to have the hots for them no matter what the genital situation is. If Rocky had been a cloud of sentient algae he would have wanted to do it in the cloud. However Grace doesn't know this. He thinks he must have had some kind of latent alien fetish and that's why he was so bad at relationships











