What does this weird dream about my old teacher mean?

Dream - Me & my old history teacher!! ?

last night I dreamt that I fancyed my old history teacher and I was in his house were I slept over the night before as a guest because he has a wife and two children.
His house was very nice and on the wall was a picture of his mother (who is now dead) and she resembled me quite a lot
I was even checking his wifes jean size comparing her to my own as I got ready in his marital bedroom ie doing my hair etc. he kept walking past and staring at me and I knew that he wanted me and I did him
when his wife was not their he was upstairs in the bedroom as I prepared for s*x and it may sound growse but I needed to shave and brush my teeth embarrassed lol but once I went into the bedroom we started to have s** and he was on top and its me but as if I was watching down and not connected to my body whatsoever and it was pretty rubbish . now last note I am not attracted to my history teacher at all and I finished school not so long ago with the dreaded results in augest .. please help it was soo realistic x

People have weird dreams all of the time. I have also had sexual dreams about people I was not at all attracted to. Don't be weirded out by it, it's only a dream.