Slowly, he withdrew the two fingers from her arse and added a third, causing her to keen and shake, feeling her orgasm gradually cresting as the stretch increased. He snapped his hips against hers harder, and again, and on the third thrust she tipped over the edge, moaning and shaking as the orgasm broke through her. Before she was finished recovering, he withdrew both his fingers and cock and after another murmured spell she felt him spread her arse cheeks and press the blunt head of his penis against her arse. With a slow and steady thrust, he filled her to the hilt, causing her to let out a deep moan and then he was moving. Slow and shallow at first, and then gradually harder and faster until he was slamming into her with every stroke. She had no idea what she was saying or even if words were involved. All she could focus on was the restraints against her forearms, the hard unyielding surface of her desk beneath her torso, and the friction and stretch of him filling her again and again. 