Sabrina grunted into her sister's delicate wet flower, she felt her inner walls contract around Ken, milking him as he throbbed inside her. Noting that Marina hadn't moved, she looked up and grinned at the little Ravenclaw, "let Luna lick you while I lick her, we can all come together," she purred, reaching out for Marina, hoping she would climb over Luna's face.
Feeling Ken's aniexty arise again she realized she hadn't told him she had the reversal potion, it was a very curious potion, as it only allowed the drinker to become flacid after he came again once injesting the potion, "don't worry, Ive got got something to make it stop," she giggled, looking back at him.