She Wanted to Watch me

She advertised that she wanted to watch a man masturbate while he was watching porn.  So I answered her ad and got a real reply, and made arrangements to meet at my office.   She was extremely circumspect, she did not want to be seen with me outside of my office, I think she was afraid someone she knew would see her.   Although she never said this, I think she was in a relationship with a woman, but found herself insufferably horny for a man.   When we met I assumed that we would be doing just what she asked for, which is to watch me masturbate while we both watched porn, and that's the way we started.  I don't have a great selection of porn but the evening before I downloaded some things for us to watch.   I got some vintage porn that was pretty lame but I didn't have time to do a good job of it and I don't really have a good collection to begin with.  Anyway, watching some of it, I got aroused pretty quickly and stripped down and started to masturbate, and she just sat there in a chair.   She asked a couple of times if I had anything with a man licking a woman's pussy, and, although there were episodes of  that in the videos I had downloaded, I hadn't selected for that because I didn't know she was interested.   Anyway, I got the idea that that was something that especially turned her on.  I don't know if she was also getting turned on by watching me, but I was very hard and enjoying the feeling of both her eyes on me and the video.   Anyway after a while she said she wanted to play with her nipples so she pulled her shirt up and started to do that.   By the way she was a pretty attractive woman in her 40's, I'd say.   Then after a while she asked me if I would suck on her nipples, so I started to do that, while continuing to stroke myself.   I was completely nude and had my right hand on my cock, but I leaned over her chair to kiss her nipples.  Then she said she wanted to play with her pussy, so she took her pants off and started to do that.   Then she asked me if I would finger her, so I started to do that with my left hand while continuing to masturbate with my right hand.    She was very wet and I entered her easily.    Finally she asked me if I would lick her, so I got down on my hands and knees, completely nude and still stroking myself, and put my mouth to her pussy.   I could feel her swollen clit immediately on my tongue, and began to lick her.   But I didn't have to do any work, because she kind of pushed her hips and ground her cunt  into my face, and she cummed really quickly.  Then suddenly she got extremely embarrassed as if she regretted the whole thing, and put her clothes back on.   She said she didn't want me to look at her, she was so embarrassed.   So I said, ok, I won't look at you, but will you look at me?   Because I still had not cum.   So I leaned back in my chair and continued to masturbate, looking at the porn movie.   It wasn't long before I cummed myself in a really intense orgasm, spurting cum straight up in the air that fell back on my hand and over my cock and made it very slippery.    Then she excused herself and left, and I never heard from her again.   I sent her several messages saying I'd like to meet her again but she never responded.    That's the story, I considered it hot and unusual.   Stuff like this doesn't happen to me very often.