Sunday, wake up.
The vibrant sun shone just over the little apartment block, barely hitting the small, square window embellishing the white-wash walls.
Laying torpid, drenched in her own sweat, Frisk was just regaining conciousness from the previous night's events.

"Theres always something slightly comforting about passing out on a bed ridden with unidentifiable stains, huh kid?"

Suffering the plight of attempting to ignore the man adjacent, she wriggled turning her back to him. "Classic hangover, not that I can judge. But hey, kid, let's get on up. You know what day it is today, right?"
Half asleep, confused, with her head twanging with sharp pains, she toiled to face him.
"..What?" she mumbled, confused. She could barely comprehend her own thoughts, poisoned by her over-indulgence the previous night. Sans rose, brushing off the slight anger that rose in him. Breathing out a sharp sigh, his eyes glossed over the girl, "Y'know, this actually never used to be typical of you. Gosh, teens these days... It's Tori's birthday."

Her eyes widened, words tumbled out of her in a slight panic, "Fuck, fuck, fuck." Her eyebrows furrowed.
Her newly found conciousness gifted her with the scent of vomit and beer, not having seemed to subdue after the night.
Her stomach was empty but churned uncomfortably. She emerged pitifully from the damp bed, "Fuck. Sans. I forgot."
"I gathered as much. Rise and shine, kid. Get down those stairs and atleast wish her a good one." He promptly left, and Frisk slumped back down onto her bed miserably. The woman she had used as a safety blanket for years, too kind and unyielding to scold her for the numerous troubles she'd forced the woman to endure,
and yet she couldn't even wake up entirely sober on her birthday.

Her heart pounded, the scent of pastry having made its way to her room causing her face to reflexively contort up. Butterscotch and cinnamon pie naturally got sickening after it being a custom in the house for years.
Not that this was Frisk's house, no. Far from it.

Frisk declared herself independant from Toriel's loving home a few years ago, and soon found solace in residing with Sans and his brother Papyrus. Not that this stopped Frisk from making her small pitstops to Toriel's house when she was far too intoxicated to ignore the vomit and tears smothering her face. She slunked back into Toriel's comforting, maternal embrace, putting aside all pride she had. Toriel looked after her regardless.

Frisk was always somewhat reserved, and unspoken. A few meagre words here and there sufficed when it came to talking to others. Nobody could understand what troubled her. All anyone could suppose was that she had purged herself of dignity one year and developed into a mix of fear, loathing and experimentation. That was the best clue most that knew her could gather by themselves. Toriel had been burdened for years on what had went so disasterously during her upbringing of Frisk, each opportunity she had to ask Frisk, she was met with silence. Everytime.

Shamefully trudging toward the living room 'freshening up', Frisk inhaled deeply and solemnly.
She was met by that familiar warm and pleasant smiling face of Toriel, "Good morning, Frisk! You're up late." She chuckled,
"Feeling better?" Frisk paused, without memory of the previous night, she couldn't even begin to guess how Toriel had found her last night.
"Toriel.. I'm really sorry. I need to stop putting you to so much trouble, fuck." Frisk scanned the room.
No decorations.
No guests.
By the looks of it, even Sans had left at this point.
Simply a butterscotch and cinnamon pie freshly prepared, sitting on a small table in the middle of the room.
"Wait, where is everyone? I thought you were having a small party."

Toriel took a deep breath, in attempt not to look crestfallen, "Look, Frisk, I held it off. I thought it would be more appropriate whilst you were in this state," she spoke with a small, forgiving smile.

Toriel's words bore deep into Frisk. She gulped, "Toriel.. I'm so sorry."
But her apology was the same as a million others before and this situation was the same as a million others before.