Narcissa was completely overcome with lust and inhaled through gritted teeth, hissing in passion at her sister's forcefulness. "you are always going to be my only weakness cissy. You are my drug" Bellatrix spoke with conviction as she learnt against the younger witches neck, her lips brushing against the warm flesh. Narcissa gasped slightly at the contact. "Bella, I need you." She breathed at her. Before she could pull herself out of this drunk-lust dizziness Bellatrix had snaked her arm round her sisters waist while her other hand was creeping up the inside of her leg. Nails brushing the pale skin as she ascended. The young witches skirt making for an easy cover for her sinful notion.