Demon's Debt: A Witch's Ruin

Elara is done being a good witch. Bound to a coven that prizes polite rituals over raw power, she's spent years suppressing the chaotic magic that roils under her skin. Her desire for control has made her a pariah, her fear of her own potential turning her into a brittle, hollow imitation of a sorceress. But when a binding spell goes catastrophically wrong, she accidentally summons a creature from the Lower Realms-a demon of insatiable hunger and wicked humor named Malphas.
He's arrogant, terrifyingly beautiful, and he owns her soul now. Malphas didn't ask to be dragged into the mortal plane, but he's not complaining. He's been trapped in the void for a century, starving for the taste of magic and the heat of a living body. He sees right through Elara's uptight facade to the trembling, needy woman underneath, and he intends to collect every ounce of the pleasure she owes him.
The problem is, the demonic contract they've stumbled into requires them to feed off each other's energy to survive. If Elara doesn't learn to let go and unleash her wild side, she'll wither away. And if Malphas can't get her to surrender to him completely, he'll be dragged back into the darkness. Thrust into a hidden world of carnal rituals and dangerous power plays, Elara must navigate a maze of supernatural politics where desire is a weapon and trust is a weakness.
Every touch from Malphas scorches her with pleasure that borders on pain, chipping away at her rigid control. But her coven is hunting them, and a rival demon wants to claim Malphas's territory-and Elara-for his own twisted collection. As the nights grow darker and the debt comes due, Elara realizes that the only way to save her life is to embrace the very thing she feared: the intoxicating, ruinous magic of submission.