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It’s sudden, strong and magnetic - that irresistible pull to the two of them. The need to feel them, hear them, see them, like he never has before. Eren drags Mikasa closer, running his fingers through her short black locks. She smells soft, powdery, and delicate, like a fresh bouquet of violets. Her lips are sweet with a sour aftertaste; the flavor reminds him of sun-ripened raspberries, stolen off the bush. His fingertips lightly scratch her scalp, sending shivers down her back. Eren relishes in the way her body shudders at his touch.
Another set of hands wrap around him, supple lips tenderly placing a trail of kisses on the nape of his neck. Eren moans into Mikasa’s mouth as Armin sucks and bites his sensitive skin. He marks the area where Eren’s hair drapes low on his shoulders, acting as a shield. The marks are for him and him alone, dark red and purple flowers that will bloom a greenish hue as time passes. Reminders that will fade and disappear, just like the memory of this moment.
Mikasa parts from Eren, panting. Her lips are stained crimson like the juice of ripe berries, swollen and abused from being attached to him. He rubs his thumb over her lips. She nudges him further away and he turns around to see Armin’s head resting on his shoulder. Eren adjusts so he can cup his cheeks as they lock lips. It’s not as tender or sweet as before; it’s wet, sloppy, hungry. They want to devour each other, quell this swirling ache deep in their bellies and their groins.
Armin smells refreshing, like freshly cut grass in the spring. It’s strong, just like the taste of his lips - as Eren licks into his mouth he’s greeted with an earthy flavor similar to brewed herbal tea. Armin’s hands roam all over his bare form, passing over his chest, his waist, his legs. Eren returns his curiosity, his fingertips tracing the lines of his pecs, brushing over his pert nipples, tickling near his navel. They explore each other without restraint, indulging in their deepest desires.
Eren pulls away first, a single strand of saliva still connecting them. Armin reaches out to wipe the excess from Eren’s face, his thumb caressing his cheeks. Mikasa is between them as they kneel on the mattress, taking each of them into her hands. Eren has never noticed how small her hands are until now. She pauses her movements and nudges them again, this time to lay down in front of her so she can comfortably pleasure both of them at the same time. Her mouth is small, too, he notices. He grabs her chin as she strokes Armin to full hardness while sucking on Eren’s length.
She looks up at him with so much adoration. Her eyes are shiny like well-polished silver and he sees himself reflected in them. She switches to bobbing her head up and down on Armin as she plays with Eren’s balls, gently massaging them. Eren groans, turning his head to gauge Armin’s reaction; his head is thrown back with his hands covering his face.
Eren rubs Armin’s chest, playing with his nipples. He switches between them as Mikasa continues languidly bobbing her head. Armin’s body jerks, his toes curling. He places a hand on Mikasa’s head, tepidly pushing her off of him. She wipes at her mouth as she rises. Eren takes the opportunity to lean in and kiss her again. He licks into her mouth and the sweetness of before is replaced by the bitter and salty taste of flesh and pre-cum. She sucks on his tongue, her hand never leaving his stiff length. The pressure and friction from her strokes is bringing him closer to the edge.
Her whole body jerks and Eren opens his eyes, separating from her. Armin is behind her, his face flushed and his arms trembling as he holds her waist. She shudders when he starts moving, her hand still wrapped around Eren. He lays back to watch her expression as Armin rolls his hips against her backside, filling her warmth with his burning-hot length.
Mikasa’s face is painted with pleasure as her lips part, moans escaping her sweet mouth. Her bangs cover her eyes, obscuring Eren’s view of the gray orbs. He gets back on his knees, upright, so she can use those beautiful lips on him again.
She eagerly takes him in her mouth as Armin continues thrusting into her; he pulls all the way out and eases himself back in. Her arms tremble as she struggles to keep herself up. Eren combs his fingers through her hair so he can see her eyes. They’re brimming with tears, the bubble of arousal building up inside of her on the edge of bursting. She looks so full, so content, so satisfied. He sighs as she buries Eren deep inside of her, all the way to the back of her throat. It’s warm and tight, better than he ever could have imagined.
Mikasa pops off of him with a wet sound as she cries out, Armin filling her to the brim as she comes crashing down. She almost topples over from the force of her orgasm. Her legs are shaking, Armin groaning as he pulls out and finishes on the sheets under him. Mikasa gets up, coming to Eren’s side and kissing along his shoulder. Armin wanders to Eren’s other side, rubbing the small of his back as he strokes him to completion. Eren grunts as he paints the sheets with his release. It dribbles out slowly, coating Armin’s hand as well. Mikasa places a kiss on his cheek.
At least they’ll always have this moment, even when he’s gone.