Isn't it quite obvious? Getting into her panties of course!

"I'm sure in luck tonight though..." The man eventually continued, in that same intimidating growl as he looked down upon his strapped up victim, making poor Jennifer shudder in her bonds at the appreciating tone to his voice. "I certainly didn't expect to find such a lovely young woman like you working all alone over a friday night... Don't you have someone waiting for you back at home, girl?"

"Mmmph..." Jennifer miserably shook her pretty head in reply, before realizing her terrible mistake. Friday night, with none of her colleagues getting back to work until monday morning, and with none back at her place that would report her missing. Of course her mysterious assailant didn't feel the need for being in a hurry! Her realization must've showed in her eyes too, as she noticed the smile growing wider behind his mask.

"So we have all weekend then, if we so wished?" He leered while slowly getting back on his feet again, still holding on to her hair while giving her body a full look over. His eyes seemed to strip her to the bones, even while hidden behind his dark glasses, all the way from her angelic face to her cute little bottom in the skimpy short skirt. With just a tilt of her head he could see down the cleavage of her tight black dress too, obviously enjoying every bit of the view. "Not a bad catch... Not bad at all...!"

"Mmmph...!" The sweet office worker tried again to make her voice heard through the tape across her mouth, but to no avail what so ever as the man was already making his way back and around her. The finger tips of his slick leather gloves tracing their way up her slender thigh made her start shivering again, but still there was nothing at all she could do about her situation, even as she could feel him raising her short skirt and leaving her tight buttocks clear to the open air...

"Just relax, and I'm sure you'll be totally allright with this..." She could hear his voice from somewhere behind her, and with no better alternative at hand she could only try and obey him. It certainly didn't help her from jumping however, as one of his fingers slipped up right between the outer lips of her well shaved little pussy. Her muffled yelp, coming out more like a moan than a cry for help only seemed to encourage him however, and within seconds he was skillfully working his fingers all the way up and down along her tender slit.

"All wet already?" He teased her, almost in a normal tone now while caught up in his own excitement, but quickly changed back to his dropped down growl again while spreading her juices to all areas around her little opening. A flick of his finger across her sensitive clit **** another groan out of her body, but this time from real, though involuntary pleasure. Whatever he was doing to her, she would have quite obviously enjoyed it during more favourable circumstances...