◇ Pairing: Ominis Gaunt X fem!Reader; Sebastian Sallow X fem!Reader
◇ Warnings: angst, madness, love, smut, possessiveness
◇ Summary: Y/n decides to let Sebastian have what he wants but Ominis doesn't agree at all.
◇ Note: Sorry for the mistakes and the English.
It was Y/n's last year at Hogwarts and also the last chance she had to reveal her feelings to her best friend Ominis Gaunt.
The two had met during their fourth year, they had not immediately bonded given the cynical and vaguely cold demeanor of the descendant of Salazar, but after all the adventures and also thanks a bit to Sebastian the two grew closer discovering new things about each other to the point of developing romantic feelings that were still hidden within them.
Y/n had not spoken to anyone about it but it was clear how she felt given her sweet and all-too-long looks directed at the student, the smiles she wrested from him at every opportunity and the desire to always stay as close to him as possible.
Sometimes the young witch wondered if Ominis felt the same, as sometimes he seemed to give some sign of reciprocating the feelings but then made no move, leaving Y/n disappointed and together only with the constant flirting of her other best friend Sebastian Sallow.
He too like the others had changed after the events of their fourth year, he had grown up and become more handsome or so the girls at Hogwarts claimed along with even a few boys who tried to joke about it later and not blush at the remarkable charm of the Slytherin's freckled and well-delineated face.
The dynamic between Y/n and Sebastian had changed and evolved just as it had between her's and Ominis's, Sebastian was constantly beside her when he could, always ready to make some flirtatious joke and propose things that no one would ever have to find out if the young student wanted to keep her reputation pure in that area.
Sebastian's change in behavior, of course, went not unnoticed by Ominis, who, after sleepless days of trying to decipher Y/n's behavior toward him, hoping to read between the lines, and Sebastian's behavior that was followed by a talk with him, made him come to a conclusion.
Sebastian Sallow, his best friend, had feelings for Y/n, and Y/n evidently had feelings for Sebastian since she laughed at his jokes, did not ask him to stop flirting, and spent time with him.
Ominis was blind, truly and even to the feelings of the young witch who had simultaneously tried to give him clues for months, trying literally everything.
She had invited him to Hogsmeade during Valentine's Day, offered to help him with the subject that gave him the most difficulty, made sure to touch him often even if only by holding his hand or laying her hand gently on his shoulder, always took his arm when they walked together, left kisses on his cheeks or hands that remained imprinted in Ominis' mind, spent hours talking together with him opening up in such a way as to show him that she trusted him.
But all these actions were misunderstood by Ominis, who saw them only as a gesture of friendship or compassion because she thought it would hurt him when she revealed that she and Sebastian loved each other.
The young Gaunt had also tried to convince himself that it was all right for him, if Sebastian made Y/n happy then they could be together, despite the fact that the mere thought of it caused him an unpleasant nausea followed by chest pains, his throat tightened each time while his eyes grew gloomy masked by a veil of sadness; when this happened the poor wizard could not even eat a meal for most of the day.
The time he so feared came a few months before the end of their year, the descendant of Salazar Slytherin was walking quietly through the corridors holding his wand in his hand so as not to bump into the various walls or any objects; it was during that time of the day that he overheard the voice he recognized as Sebastian's. It seemed to come from a secluded area and was barely higher than a whisper; Ominis could not make out who he was talking to but found out very soon since Y/n answered the other wizard's question, allowing herself to be seduced for the first time by the thought of Ominis Gaunt's rejection.
The young man could feel Sebastian's hands move to the witch's hips, he could feel their uniforms move with them as they moved closer, he kept telling himself in his head that it was okay, this was the way things were supposed to be but inside there was something that almost made him suffocate.
After an internal struggle that was brief because Ominis came back to reality as soon as he heard the sound of a kiss, fortunately placed only on the student's hand, but which still had a remarkably strong effect on the wizard.
Something had as if awakened within him and was threatening to come out, his usually lost and sad eyes had become dark and menacing, his teeth clenched and the tension in his jaw was visible.
He had to take only a few steps to get closer to them, sourly and hatefully saying Sebastian's name, whispering a quick apology as he tried to compose himself while grabbing Y/n's hand, revealing uncaring of his friend's response that she and he had to prepare for a subject they had together and that it was something really urgent so they couldn't wait; with that he dragged her away from Sebastian's claws who stood there motionless watching them confused and definitely disappointed.
Y/n did not ask any questions, she followed Ominis blindly, not knowing where he wanted to take her or what they were going to do since they had already finished reviewing all their subjects together.
The fact that he was leading her toward the Undercroft might have been a clue that Ominis really wanted to go over something he might not have understood, but from the aura around them Y/n could tell there was more, Ominis was not like every day, there was something different perhaps a sense of jealousy or possession.
The two entered in silence, Y/n opened her mouth when the door closed but did not have the chance to speak because a hissing sound made her stop; a hissing sound that came out of the mouth of the wizard who apparently did not notice because he kept gesturing as he hissed threateningly, showing all the anger he felt at that moment.
That situation should have frightened the young woman but she was simply thrilled by it, chills ran down her spine at hearing that language that was considered almost a taboo like the thoughts she had at night about the boy who was trapping her at that moment against the nearest wall.
Y/n had no idea what Ominis was saying but she let out a breathless little "yes" when the hissing intonation sounded like a question, apparently she had answered correctly because a satisfied smile formed on the Gaunt's face before he attacked her lips like a snake hungry for its prey, even his hands traveled as such, exploring every single part he could reach, studying and memorizing what her body looked like without letting her catch her breath for even a second.
Ominis's tongue was exploring Y/n's mouth while his hands were under her skirt, on her ass so that he could hold her up better, the witch's legs were wrapped around his hips, pressing her heat against the evident but still hidden boner in the student's pants.
Both were lost in the moment of passion, their hips grinding against each other, both were breathing heavily, and sometimes little moans came out that were interrupted by the Undercroft door opening.
The only one who could be was Sebastian himself, since Ominis and Y/n were already in there; the student walked in without much ado, freezing at the sight, his mouth opened but no sound came out of it, he was shocked and truly disappointed, he had never, ever expected to find his best friend with his uniform disheveled exactly like his hair and the girl he was confessing to earlier in a definitely compromising position, also with her clothes slightly open and a mess.
Sebastian's heart skipped a beat, in a bad way, anger flooded him in seconds, his fists clenched but it soon became sadness, a sadness that made him run out like an angry and offended child, even slamming the door leaving Ominis and Y/n alone again in that secret place.
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