A Mistress, eager to train her new bisexual slave, introduces him to a collection of thick, intimidating sex toys. She commands him to strip, displaying his firm, smooth body. She selects a large, textured dildo, slathering it with lube. The slave, nervous but eager, spreads his cheeks, revealing his tight, virgin hole. The Mistress, in her heels and latex, teases his entrance, watching it clench and unclench. She pushes in, inch by inch, as he groans, feeling every ridge. She fucks him slow, then fast, making him beg for more. Next, she introduces an even thicker toy, testing his limits.