NHDTB-329 Aphrodisiac ejaculation penis attack 4: A female student loses her mind and awakens to lesbianism as she cannot call for help due to the pleasure of internal thrusting

A beautiful sister who likes girls takes her younger sister's friend's virginity! A confused girl is suddenly invited by her older sister and made to comply by having a double-headed vibrator attached for forced penetration! She's pounded hard and filled with an aphrodisiac dyed the color of semen! Her sensitivity gradually increases, and she begins to experience 'female pleasure'! Furthermore, her younger sister, who notices the lesbian suspicions, retaliates in ≪Reverse Lesbian Attack≫.