"Oh no, Ada..." "Brad... please, deeper... harder!" Ada's excited voice interjected between her soft moans. The bed frame shook violently against the wall, catching Ann's attention in a moment of shock. This couldn't be happening... Taking a deep breath, Ann gently pushed the door open a fraction wider. Her heart raced as she held her breath, watching the gap widen, revealing an unexpected scene. Her jaw dropped in horror as she saw her fiancé with her own sister. As Brad climaxed within Ada, she turned her head toward the door, a sly grin on her face. A cold shiver ran down Ann's spine, as if she'd been drenched in icy water. She stood frozen, her eyes wide and mouth agape in disbelief. Ada raised her hand, waggled it in Ann's direction, still maintaining a self-satisfied smirk, while Brad tenderly kissed her neck after his release. What actions could one take when faced with such a situation involving their partner and sibling?
