Succubus Purification Thing

>Anon lives a shitty life
>He's stuck in a slovenly, directionless and depressing existance
>At the trough of his wallowing in self pity, he either decides to attempt a succubus summoning, or plot happens and forces one on him
>Anon's depression is replaced with depravity
>The succubus is doting, willing to be whatever Anon wants her to be, and will lavish him with sex at every opportunity
>She makes endgame MGE look like a church sermon
>For the next few weeks, their life becomes a time-blurred fantasy of endless sex, more pleasurable than anything Anon's ever experienced
>He and the succubus subsist in Anon's home, getting by on the absolute bare minimum
>Then, one day, while taking a break from sex, maybe for something to eat, Anon has a revelation. An epiphany
>Maybe he looks outside, or sees his calender and realises all the time he's spent. Maybe the landlord is threatening eviction
>The succubus is by now so smitten by Anon that she states, completely truthfully, that she'll love him no matter what
>Even without a job, or a home, if she has to take him into the woods, she just wants to be together with him
>But Anon resists
>He realises he's just running away from his original problem of being a lazy shit, or something
>Over the course of the story, he works to take responsibility for himself, but more importantly, his new succubus roomate
>He gets an income, tries to tidy up, and completely resists the succubus' pleas for sex
>But even though he says he's doing for her benefit, and that he can't slip back into that habit, the succubus is distraught
>Bound to Anon, she's unable to leave him
>Not that she wants to, anyway. She just wants to love him, express it with sex, and have him love her back
>Anon has to deal with his own equivalent of Jesus' Temptations, wondering if it wouldn't be so bad if he just had sex with the succubus once. Just once, to show her he still loves her. Then right back to improving his life
>Still he resists, even though it pains him
>Over time, the succubus begins to change
>Her wings grow lighter, and feel softer to the touch
>Her horns are shorter, and the pleasure runes on her skin resemble divine markings more and more every day
>She slips between moods like a madwoman. Depression, denial, threats, all while she tries to comprehend in her brain why this is happeneing
>But slowly, as the changes happen, she begins to see the truth and meaning behind Anon's actions
>Eventually, she transforms fully into an angel girl
>She's grateful at last for Anon's celibacy in an attempt to improve himself, and promises she'll be by his side to support and maintain him
>They have divine sex on a regular basis, while doing so much more outside the world of sex
>Happy ending.