I promised I would and now I shall. Behold: the extent of my worldbuilding thoughts. I bring you -
Phospher's Freaky Magic Sex Rules!
A list of all the obscure rules that Phospher (and I) have to follow when writing for NSFW scenes. Under the cut because it's quite long so watch out!
-The goop that helps solidify Control over people becomes his blood and saliva. After he starts turning more monstrous, he loses all internal shape and form and it's goop all the way down, overflowing out of his mouth but dissolving and disappearing almost instantly as soon as it loses contact with him directly unless it lands on someone else. If someone seems resistant to the Control but is slipping at least a little, sometimes Phospher will just start kissing them so the mind-numbing saliva can push them past the edge into his Control. (Because it is also his blood and anything internal after a certain point, it's possible for people to get hit with backspray when stabbing or cutting him and fall victim to it even then)
-Even before all his internals were supernatural goo, Prism made certain one of the first changes it made to his body was to sterilize him if he continued doing this. One less liability means it keeps its Control over him for longer. Phospher genuinely never even considered it for a second and never noticed.
-Because Prism's presence amplifies his strength and stamina, Phospher can technically keep going forever and never exhaust himself. After turning more monstrous, he stops needing to breathe, meaning he could literally fuck someone endlessly and forever if he really wanted to. He's a busy guy, though, so he doesn't. But he could.
-The placement of the TV on his chest was a purposeful addition from Prism. Even when Phospher is hiding his true form under layers of illusion, that constant spiral is still present. Because Phospher is so tall, the eyeline of shorter women will naturally line up with it, and cause extra disorientation he can take advantage of. If standing, he will sometimes shove someone's head against his chest to force their eyes on it, temporarily preventing them from moving at all until released.
-The goop specifically coming from Phospher's mouth not only numbs the mind and makes people easier to Control, but it also spikes nerve endings and makes everything it touches more sensitive. This makes kissing him very pleasant, often catching people off guard when they aren't expecting it. Not quite an aphrodisiac, but enough of what it is to get someone fully under his Control. He does not have to be actively using it for it to work - leftover remnants left behind from kisses that aren't wiped away will continue to amplify and react with any sensations felt on that spot, though it will (like everything else), fade away into nothing after a time if he does not manually continue to replenish it.
-Phospher's monster form functions differently under the illusions, though it is quite common for Phospher to forget what he actually looks like and act out actions he does not need to perform in the heat of the moment. The most obvious example of this is the removal of his clothes. Because he's just a surface-level shell over an internal core of golden goop, he doesn't technically have clothes to remove. If he tries to, they simply disappear when no longer in his hands. Sometimes he will remember this, and surprise people when they aren't looking by fading away illusions of clothing without moving.
-Related to the above: He technically, because of this, no longer has a dick. He can simply make one appear by moving his internal structure to shift the goop into the shape he wants, which sometimes results in him forgetting he does not need to remove his pants to start going for it. This also means he can fully hide any arousal he may be feeling until he finds the right time to make his move. While the ability to reshape whatever he wants seems like it would get out of hand, Phospher finds it most comfortable to simply maintain what he knew he had before. The goop inside him still contains nerve endings, they're just not able to register pain, meaning any goop he uses to shape what he wants will still be able to feel the normal amount of pleasure he would get otherwise, if not more.
-While his distorted limbs and monstrous form make him able to do anything he desires, Phospher prefers not to. Anyone making eye contact with an undisguised Monstrous eye will immediately fall under his Control if they are weak enough. Stretching his limbs will make them drip golden goop that Control the other person even further. The TV on his chest can easily stun or paralyze others temporarily. However, he finds all of this too easy to take advantage of, and prefers to take his time. Smooth talking, weaving Control into his voice and touch, and lowering people's guards naturally makes the experience more fun for him. There are extremely limited circumstances in which he would use his monstrous form for sex. If he gets frantic and worked up while in that form, the greatest pleasure he can achieve is through violence. Not only does Phospher prefer to relax and enjoy the moment, but he knows any actions taken while in an amplified emotional state in his monstrous form will likely result in the death of whoever he is with, intentionally or not. This is part of the reason the eye under his hair is a singular undisguised Monstrous eye - it allows him the benefits of extra Control without overwhelming others and causing suspicion.
-Because of the nature of the goopy substance in his body amplifying sensations, he has the strange ability to manipulate other people's reactions to sex. To be entirely straightforward: if he is fucking someone and they orgasm they will continue to do so indefinitely until he stops all movement. It took him quite a while to notice this was happening because he so thoroughly dismisses the other person during his activities. He can extend both his and the other persons climax for as long as he wishes, though he tends not to drag it on too long. Unless he gets carried away. Or until he can see them completely lose the light in their eyes and all drive to fight as they become overwhelmed with emotion beyond all reason.
-Bonus Chell fact! After she dies and is revived by Phospher using a piece of his soul, that piece then gives her just a small inkling of the power he has. This manifests most clearly in being able to use contact with the goop in his body to heal herself in small amounts. As long as she keeps kissing him, she also will never get tired or exhaust herself.
-Related to the above, during Happily Ever After, Chell gains even more of Prism's power after an event they weren't willing to rewind left her injured. She gains a small amount of Control that she can use to only slightly disorient people who already fully trust her. If she wants to use her own power, she often needs Phospher there to seal her influence as she can't fully take Control of someone herself
-Bonus Cult AU Fact! While Chell in this AU follows a lot of the same rules Phospher does, she has the added effect of the goop within her system being a genuinely addictive substance. While she can purposefully hold back so as not to entirely overwhelm a person's mind permanently, part of the reason she gets away with what she does without erasing a bunch of memories is because those she sleeps with become obsessed with her to a point where they agree to anything she says.











