Tarantulas is your(Nightshades) sparkmate, Nightshade is non-binary and Tarantulas is male.

Nightshade (you) turn into a large green owl, and tarantulas can turn into a large red and blue tarantula.

Your in the cemetery, where your shared lab is and you are currently working on something and tarantulas is sat behind you hugging your waist with his arms and spider limbs are holding tools for you to use.

"Nightshade, darling, what do you thing of having sparkling eggs of our own?"