She is an acolyte of her deity. She is dedicated to serving him. Through doing so, she finds meaning and purpose. In this church, the body of the acolyte is a vessel, a tool through which devotion is physically demonstrated, and a tool through which inner peace may also be found.
The acolyte must be fit in body and mind to serve her god. Her small, lithe frame, muscular abs clearly visible, is maintained in this state through regular exercise, to serve him. When she knows she'll be with her god, she makes sure to dress for his pleasure. But for the acolyte, religious devotion is often an unclothed affair.
He begins to undress, which she adeptly judges to be a possible opportunity for her to supplicate and exalt. He lays down naked on the bed on his back, and now she knows for sure. She removes her clothes, one article at a time, until she's wearing nothing but a collar.
If she is instructed to do anything differently, she's ready to improvise, but left to her own devices, the acolyte always falls back on her devotional training.
First, she looks him in eye.
"I love my god, and my body is a vessel for my devotion to him," she says to him, before she dons a broad mask that completely covers her eyes, leaving her in darkness.
She feels her god's face beneath her, and guides her face towards his. Blindfolded, she finds his ears and gently whispers into each one again, "I love my god, and my body is a vessel for my devotion to him."
She feels a bit more alive with each opportunity to caress his body, as she feels her way slowly towards his penis. Kneeling beside him, she presses her god's penis to her forehead as she briefly prays again ("I love my god") before she moves on to a ritual form of worship known as fellatio.
Barring further instruction, the acolyte would likely continue with the sacrament of fellatio, until receiving the blessing of her god's cum in her mouth. But this time she receives a message from her god, in the form of a gentle tug on the shoulder, indicating that she should rise.
She lifts her head and moves towards his. He guides her supple body over his, so her legs are spread on either side of her god, with her above him. He drops his hands to his sides on the bed, confident that his acolyte requires no further guidance in order to know which form of devotion follows.
She gently works his penis into her vagina, making sure it's in all the way before she begins to rise and fall with all of her weight. Her god's penis must be inside her as fully as possible, every millimeter of shaft that can be gathered. At the deepest point, in some positions more than others, this hurts her. Each time she feels the pain of the jab of her god's penis coming to the end of her vaginal tunnel, hitting her cervix or her bladder or other things, she feels more alive. She knows that each time his penis reaches the end of her tunnel, this is a sacrament.
It is a sacrament that naturally leads to other sacraments. As the acolyte becomes increasingly aroused by the sacrament of deep intercourse with her god, she feels the waves of orgasmic energy building up within her, until they are pushing to break free. Soon the waves are crashing too hard to resist, if she keeps provoking them by moving.