In this interesting fantasy I've got this huge crush on a girl. Until today she's barely even noticed me but after some convincing she finally agrees to let me come to her house to pick her up to go see a movie. Of course I happen to be in an extremly horny mood that day and can't stop getting erections almost all of the time. Finally, I come over to  the house take pick  up the girl I have a crush on and when I get there her mom notices me checking out her ass along with her daughters.

While this is a little embarassing for me I am too turned on knowing I am finally going to get a date with this girl to care but when she begins making excuses not to leave, I notice her mother begin flirting with me a little bit. Soon my date heads back upstairs and her mother moves in, touching me, teasing me, and telling me stories until my cock is ready to bust from my pants.

Her mother has me right where she wants me and right before anything else happens, she turns and stands up to walk away. The motion she makes causes her ass to brush past my bulge and push me over the edge. As much as I struggle, I know I'm going to cum right there in my pants. This is when the girl comes back downstairs and the doorbell rings.  The girl I was supposed to go out with is looking right at me while my cock twitchs and throbs. She notices every little detail when my cock begins spurting cum all over the front of my pants and a very noticable stain forms. 

At the same moment, her mother is opening the front door and a guy walks in just in time to watch the final moments of my orgasm, shock, and embarassment. The house is completely silent until the girl starts to giggle. Quietly at furt but eventually bursting out in laughter. When she's finally finished she introduces me to the guy. The guy who turns out to be her new date.

I end up standing there with a massive cum stain on my pants while the girl I thought I was going out on a date with leaves with another guy. When I turn to leave, I notice that her mother has disapeared too but left a little note on the couch next to me.

The note that she left talks about how her daughter talked about the date with that other guy for a month and eventually gets to saying sorry for "accidentally" making me cum at the exact moment her daughter walked downstairs. The final thing the note says is that we'll be alone all night long and that I should go upstairs into the room of the girl I was supposed to take out on a date.

I haven't decided yet what exactly happens but I know I'm too embarassed to leave due to the cum stains on my pants.