sick day surprise

My name is Sean and I live in Seattle, Wa. where I currently attend highschool as a Sr. where I play football and run track. I am 6 ft tall and have an athletic build, I have dolphin blue eyes with a slash of gray and am moderately attractive.
     Earlier this year I was dating a Vietnamese Soft more named Amy that goes to my school. She was born in the states so she didn’t have an accent at all, but her parents whom I never got to meet only spoke Vite so she spoke both. Amy stood about 5’2″ long black hair to the middle of her back with blond highlights, She had light brown eyes and a beautiful smile. She has B sized tits and just enough ass to grab onto, about 105 lbs at her heaviest with a small vagina that only has a slit, no external lip at all, almost like a clam shut tight. We had been dating for about a year and a half and she was 15 at the time.  
     Not to brag but i could date anyone i wanted to but when I saw her she was all I wanted. My school is about 1/2 Asian as is but Amy is by far the finest one.  We always spend our breaks together and lunch as well sometimes we slip out to my car or a bathroom and have sex depending on if we are going to be able to meet up after school or not. Well when I got to school that day on my 1st break I did not see her nore did i think to text her, I just figgured she got held up in her class and I would just catch her on our 15 min break. So after my second class I was really ready to see her because I had to go the weekend with out seeing her at all because her grand parents where in town. I went to our usuall meet up spot and still nothing. This time I did think to grab my phone and text her I just figgured she got held up in her class and I would just catch her on our 15 min break. So after my second class I was really ready to see her because I had to go the weekend with out seeing her at all because her grand parents where in town. I went to our usuall meet up spot and still nothing. This time I did think to grab my phone and text her to see whats up. I basically said hey whats up where are you I cant find you anywhere. I didn’t get a text back until 4th period like 20 min before lunch, which was strang cuz she can never manage to text in that class being that the teacher is a royal cunt. I didn’t care really if i got fussed at over the phone I could bull shit my way out of it if i needed to, so i checked it and she said that she is sorry but she couldnt talk cuz she was sick and at home and that she would try to text me later when she woke up and felt better. I texted her right away asking if she needed anything and she didnt reply at all so I decided that I would go over to her house and bring her some pho(viet soup) because I know her parents are at work. They never missed work, her mom owned her own nail shop and her dad was a tech some place. So I planned on going over there and just pampering her for a bit and skipping the rest of my school day and make it back for practice.
      So right when i get in my car she texted that she didn’t need anything and thanked me for asking but all she needed was some sleep. I got all the way to her house before I saw the text she sent so I decided to come in quietly and put the soup on the counter for her and she was sure to see it when she woke up and get all happy. So I pulled up and there was a strange car infront of her house which was pretty normal because there was no street parking and the park was right up the street. Threw the gate and up to the door I go w/ soup in hand. I open the front door slowly to avoid the creek sound it makes so I don’t wake her up. 
I come in and I close the door nice and quiet and take my shoes off. I go into the kitchen and lay her soup next to the stove and I make my way for the door. I slip my shoes on and go to open the door when I realize that these are not my shoes. It wouldnt have struck me as unusual except her brothers where 8 and her dad was tiny. I where size twelves and these where 14s. I didn’t ponder too much on it, it could have been anyones who knows. So I closed the door to put my shoes on and I hear a noise that sounded like her voice. I smile thinking she might be waking up and hearing me and I might get to see her and tuck her in, so back off came the shoes and I walk back into the kitchen to grab the soup and bring it to her sence its still warm. 
       When I grab the bag I heard her say my name “baby” so I walked down the hall to her room which is at the end of the hall str8 forward and her brothers room was right next to her room if you take a right before getting to her door. As I get closer to her door I can hear her jumping on her bed which I thought was so cute… Until I heard the next sound that I had trouble righting off as a normal sound.. Then I heard it again seconds later it was her moan. She must be touching her self omg this is so hott. I get to the door and the random squeeking of the bed had more of a rythum to it and that is when I heard another guys voice. I knew right away by the vibration of his voice that it was not the tv, and I froze, my face flushed with all the blood in my body and my throat sank to my stomatch. He just gave out a grunting sound but that was enough, now I can hear my Amy clearly being fucked, she was moaning ” uh uh uh ah ah AH uh.. fuck me… like… that.. uhh AHH mmm uh uh uh” she made a noise for every squeak i heard    
   I’m not sure what to do so i just go to her brothers room and sit on the bed. Just the sound of her sexy moaning was giving me such a hard on but I was so confused with the flooding of too many emotions. The squeeking stopped and i heard foot steps. I got up and hid behind her lil brothers door incase someone was going to the bathroom, and I was much too confused for confrintation.