Hermione shrugged off her robes and vanished her own undergarments, and a thrill went through her as the naughtiness of the whole situation set in. I'm naked and straddling my bound, naked lover... in Snape's private potions lab... Hermione pulled her hair into a ponytail before she began to mark a trail of kisses and nips down Narcissa's neck. She kept going down, and Narcissa strained against the bonds. The blonde wanted to have her fingers threaded through the chestnut curls, to play with that amazing hair of hers, perhaps guide that amazing mouth of hers lower...