He grinned at her gasp, and slowly slipped his entire thumb into her rectum, before rolling it around, stretching her a little. He rolled his hips, his free hand holding one leg, helping keep her steady as she thrust back against his shaft. He murmured in pleasure at her eagerness, and pulled his thumb out of her sex, before spreading the armor spell to his whole hand, and then slipped his mind and index finger into the anal passage. He then began to explore her limits, slowly spreading his fingers, and then sliding his tongue along her back.