4chan anon, unknown artist, undertale, undertale yellow, digital media (artwork), english text, flat colors, hi res, simple background, text, thought bubble, 2025, abs, anthro, areola, athletic, athletic anthro, athletic female, avian, beak, biceps, big breasts, bioluminescence, bird, black body, black feathers, black fur, blue areola, blue beak, blue body, blue eyebrows, blue feathers, blue fur, blue hair, blue nipples, breast expansion, breast squish, breasts, casual nudity, clothed, clothing, curvy figure, expansion, eyebrows, eyelashes, feather hair, feather hands, feathered wings, feathers, female, female anthro, fingers, frown, fur, genitals, glowing, growth, hair, huge breasts, long hair, martlet (undertale yellow), martlet (zenith form), maternal, mature female, muscular, muscular anthro, muscular female, navel, neck tuft, nipples, nude, nude anthro, nude female, pecs, portrait, pseudo hair, pupils, raised eyebrows, slit pupils, squish, thick thighs, thong, tongue, topwear, tuft, undertale (series), underwear, voluptuous, vulva, white eyes, wide eyed, winged arms, wings, yellow eyes,

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