A young Slytherin girl, Raven Lupin, finds herself in love with the one forbidden boy. Sirius's brother, Regulus Black. Enemies to lovers? Or lovers to enemies? 'His cold hand climbed up her thigh as she whimpered softly. Their lips move together in a synchronized match. She moaned softly into his mouth as his cold fingers inched up her skirt. He held his hand over her heat... "Beg." he sneered'