A tendril pressed against her lips, forced her jaw apart and flew down her throat until she began to gag. Uncontrolled spasms wracked her body as she fought for air that no longer existed, fought with every ounce of energy to oust the creature that was using her. It was a rather useless endeavour though, and before too long -  and before she could pass out from a lack of air  - the creature breathed.  Air greeted her lungs even as it pressed against her eyes, pressed against her mind. Another tendril swirled by her legs, her knee and hips, invading her core with need.  She stretched around the intrusion, burning heat taking over between her legs until Narcissa thought that she might burst.