Nightmare's back always aches from the weight of their tentacles. When the aching spots are massaged, Nightmare practically moans from the relief and they always quiver and press back into whoever's hands they are. Their face flushes and they actually whimper.
------------------------------------------------------------------------------------------------------
If Killer's body is critically injured, the soul takes shelter in the teammate taking care of him. It stays inside their ribcage and will pulse when Killer needs something. Occasionally, it seeks comfort and presses against the other soul, causing MANY emotions.
------------------------------------------------------------------------------------------------------
Nightmare is able to communicate with the little part of them that's still uncorrupted by releasing their soul from their chest to float in front of them. It forms a ghostly apparition of their old form and they speak to it when their alone
------------------------------------------------------------------------------------------------------
What if Reaper was able to create life, but only in the form of red spider lilies that grow from the fallen body of a monster who's soul he just reaped? The only flowers that do not wither under his touch. (More thought and less headcanon but whatever)
------------------------------------------------------------------------------------------------------
Nightmare and Dream have a compulsive need to be together when it's storming. Dream wanting comfort and Nightmare instinctively wanting to provide it even though they can't anymore. One of the few times Nightmare has worried about Dream since their corruption.
------------------------------------------------------------------------------------------------------
Killer does bone carvings. That's it. That's the entire headcanon.
------------------------------------------------------------------------------------------------------
Small, wispy hearts of magic form around Lust when he's genuinely happy or grateful. They're typically purple but will turn pink if he is romantically interested in the person he's speaking to.
------------------------------------------------------------------------------------------------------
Lust has a bad habit of falling in love too easily, which causes his depression to worsen every time someone rejects him
------------------------------------------------------------------------------------------------------
Lust naturally emits an aura that makes people feel comfortable with him. It's his magic protecting him and helping to aid in his loneliness.
------------------------------------------------------------------------------------------------------
Lust's eyelights constantly shift between pink and purple all the time. Purple fading into pink and blossoming back to purple once again all within a few moments.
------------------------------------------------------------------------------------------------------
It's hard to tell if Killer's crying or not. You have to be very observant to see the small, red glowing tears mixing in with his liquid hate.
------------------------------------------------------------------------------------------------------
Lust has small, heart-shaped freckles that can only be seen when he's flustered by someone he has a crush on.
------------------------------------------------------------------------------------------------------
Dust has a hard time focusing. Not because he has ADD/ADHD or anything like that, but because he's constantly being degraded by Phantom(Dust! Papyrus)
------------------------------------------------------------------------------------------------------
Passive Nightmare had amazing photographic memory and couldn't forget anything even if they wanted to. Though when they became corrupted, their photographic memory ended up going away but that doesn't make them like Ink. Nightmare just can't remember anything in full detail(for example, they couldn't tell you where they exactly left their coffee cup. They would just say which room it's in)
------------------------------------------------------------------------------------------------------
If Ink and Geno met up and it was just those two alone, Ink would 1,000 percent teach Geno how to paint with his(Geno's) own blood.
------------------------------------------------------------------------------------------------------
Lust bottles up all his negative emotions to the point that if someone asks him if he's okay, he ends up sobbing due to holding in his negative emotions.
------------------------------------------------------------------------------------------------------
Dream can make small wings depending on the positivity around them (Credit: Dream0Cream)
------------------------------------------------------------------------------------------------------
