It was only few nights into her new 'job' when the pattern changed. Based on reviews left by customers, she would proceed to additional training instead, making her curse her captors. What kind of pimps have review pages for their girls?! She had planned to use these nightly outings to finally escape, but instead she was pulled into tiny room... with huge blue horsecock dildo affixed onto the floor. Only other notable things in the room were the various rings bolted onto walls, floors and ceiling... and one small drain next to the dildo. Having no time to ponder about the purpose of such thing, she was quickly manhandled onto the dildo, its heavily lubed head pushed against her tailhole... and slipping in quite easily, despite her protests. It was tall enough that she could stand and its head would still be inside her! She tried pushing away from it, but they soon strapped some stretchy, but strong rubber bands around her hips, as well locking her arms onto her thighs. The rubber bands were hooked onto the rings on the floor, and then she felt her ear piercing being locked on another ring on the wall behind her. On top of this, they then slipped a tight latex mask over her head, only leaving her mouth visible. She was then left alone, the door shut, but she couldn't see anything with the hood on... Trying out her bonds, she couldn't move her arms at all, being locked onto a strap on her thighs. The chain pulling at her ears forced her head to lean backwards somewhat, so she couldn't lean forward... and those rubber straps around her hips kept pulling her downwards, onto the large dildo. There wasn't enough give for her to slip off of the dildo, and trying to lean backwards only pushed it deeper into her. She could only try to stand still and hope this 'training' would end soon. However, hours would pass until the door would be opened, and her legs would start trembling slightly, pushing against the constant pull of the rubber straps, slowly sinking her deeper onto the dildo, bit by bit. And the sign of door opening, was not to let her out, but to make use of her mouth... she opened her mouth to plead release, only to be filled with cock and forced to suck off whoever it was, until they shot their seed down her throat. Coincidentally, this would make her lose concentration and push her down even further onto the large dildo. She would regain her strength occasionally, being able to pull back off of it slightly, only to tire again soon after. Also, these constant oral services would fog her mind up again, making it hard to concentrate on her escape plan... She would be pulled off of it only to either service another customer during night, or to sleep short time before being shoved onto it again. Some time later she would also notice how she had to start leaning back more, like her breasts started feeling heavier for some reason... It was during one of the sessions that they forced her legs into folded position before adding the thigh straps, forcing her much further onto the toy than before. She heard someone mention about third of it already in her as she was being stuffed orally with another cock for her to suck... A third? And she was supposed to get this whole thing in fully? Was that even possible? A week or so later, she would confirm, that yes, it was possible...