The Bubble Slime is a subspecies of slime monster girl from the Monster Girl Encyclopedia. She inhabits dark, wet environments such as sewers, caves, and wetlands. Intelligent enough to speak human language yet guided by extremely simple instincts, she wanders in constant search of human men. Her semi-liquid body continually undergoes chemical reactions that release floating bubbles into the air and produce a strong characteristic odor. Because of this ongoing process she requires far more nourishment than ordinary slimes and is therefore exceptionally greedy. When she finds a man she attempts to envelop him and absorb his fluids through an act resembling sexual intercourse; however, her less sticky, slower-moving body makes prolonged restraint difficult. To overcome this she first kisses her prey and pours a portion of her own addictive, aphrodisiac body fluid into his mouth. Once consumed in sufficient quantity the substance creates intense dependence, causing the man to desire her body and eventually find her scent pleasant. The bubbles she generates while enveloping a partner deliver continuous, exquisite pleasure across his entire body. If removed from filthy surroundings and allowed to live in a clean environment, her foul odor fades into a subtle fragrance, though her aphrodisiac nature remains unchanged.