Professor Nyanya (Blue Archive), vibrant full color illustration, long flowing purple hair messy, horn accessory tilted, tsundere expression with deep red flushed cheeks, looking back over shoulder at viewer with embarrassed pout, eyes slightly teary, small floating heart ❤ beside face, detailed school uniform partially on, blouse unbuttoned hanging off shoulders, massive breasts exposed swinging forward, skirt bunched at waist, completely naked lower body on all fours on desk, doggy style position, ass raised high facing viewer, legs spread wide, filled condom hanging from her vagina after sex, semen visible inside condom dripping slightly, "it's not like I wanted this" attitude, denial expression contrasting with situation, delicate cel-shaded coloring, anime style, clean lines, explicit post-sex scene, professional rendering, soft pink gradient background, 8k, masterpiece.