Seduced by the Student Assistant

I was a Teaching Assistant for students just a couple years younger than me. I slowly put the moves on the hottest was a lab course, which meant that the girls could come in at many different times to work on projects. It turned out that sometimes Linda was the only student there. We talked about many different things and we seemed to both enjoy a flirtatious banter. Visions of her cute body in various stages of undress starred in the nightly relief of my sexual tensions. She mentioned that she had a philosophy paper due that she was having trouble with. I offered to help her if she wanted to come over to my place. She didn't have real good self-esteem, and was pretty easy to maneuver into whatever I wanted. She came over, and we spent a couple hours working on what she might want to say in her paper. I lived in a small attic with a sofa, desk and bed. I asked her if she wanted to take a break and listen to some music. That seemed fine with her, so I went from the sofa to my bed where the stereo was. I put the music on and asked her to join me. I could tell she wasn't eager to start anything physical with me, but she really didn't have the strength of character to hold her ground. I asked her to lie down and relax to listen to the music. We talked, and listened to the music. Just having her near me got me aroused. While we talked, I took her hand and played with her fingers. We were close enough that it seemed natural enough for me to lean in and kiss her. We had talked enough so I knew she wasn't a virgin, but at the same time she didn't jump into bed with everyone who might have wanted to. She was responsive to my kiss...