In a dimly lit dungeon, a stern mistress towers over her bound sub, a monstrous dildo clutched in her gloved hand. She roughly grips the sub's jaw, forcing her mouth open, and begins to push the dildo inside. The sub gags, her eyes widening in shock, but the mistress shows no mercy, pushing it deeper still. She smirks, enjoying the sub's struggle, her own arousal evident as she continues to force-feed the dildo, leaving the sub breathless and at her mercy.