sister throws a party, and catches brother

My name is Sam, I was raised in a fairly well off family, classic middle-class suburbia. We live in a single story, 4-bedroom house. The master bedroom is in the back corner, my sister’s bedroom right next to theirs, my bedroom, which is directly across the hall from Tammy’s, and a spare bedroom, across the hall from my parent’s room, which acts as a guest room/ study room. My parents don’t go away often but when they do trouble usually ensues. I have an older sister named Tammy; she is, at this time, 16. She has long wavy light brown hair, blue eyes a fair B-cup, standing at 5’4″ and slim from doing gymnastics and other activities during middle school. I’m 14, freckled ginger brown hair with the same waves and I wear my hair long (for a guy), blue-hazel eyes, a little chubby, but taller than my sister at 5’9″. My secret from the family is that i cross-dress. I will steal my sister’s thongs, dresses, and other articles of clothing from time to time try them on, jerk off in them, stick them in between my mattress and box spring, and when I’m done having my fun with them, I’ll rinse them off in the sink and shove them at the bottom of her dirty laundry, hoping she won’t suspect a thing.

When our parents are not on a trip, things are generally very calm. My sister, being pretty and flirty, will have boys over every now and again when my parents aren’t home yet, and she will mess around with them. I often will sneak around back and peak in through her window and watch her give her boyfriends blowjobs, I particularly like seeing when they cum on her face or in her mouth and she shows off her swallowing ability. She hasn’t had vaginal sex yet so she can claim to be a virgin, but that’s alright, because she uses this to justify anal and oral sex. I remember one time when she was going down on one of her boyfriends, and she started stroking his cock, then sucking and licking on his nuts. She then proceeded to move more south. The guy jumped a little but she placed her hand on his tummy soothing him and she grabbed behind his knees pushed them up to his chest, where grabbed hold and she started tossing his salad. He seemed to really enjoy that; I then became very curious as to what they hubbub was all about.

So one summer weekend, my parents announced they were going to the next state over to visit Grandma. There was a family reunion and we protested going. My parents, figuring Tammy was old enough to take care of me, placed that condition, and to her dismay and my glee, it was set, and they were off the following morning.

I rose up early the following morning and played videogames and ate my froot loops, and when my sister came around it was mid morning. She was wearing a big t-shirt and some pink cotton brief panties, with a yawn she exchanged good mornings and she proceeded to brew up some coffee. She had herself a cup and then announced to me:
“Hey, I’m planning to throw a party tonight. Don’t tell mom and dad, and I promise it’ll be a good time for you.”
I was super excited, I loved hanging out with my sister, aside having a boner for her; we also had a lot of fun. I gave her my “scouts honor” and she prepared the house, putting away the fragile decorative and expensive items and locking it in my parent’s room. She then started sending out a blanket text telling all her friends to bring booze, weed, and everyone they knew.

By the time the party started things were really getting kind of out of hand. It’s a good thing Tammy put away the breakables, because it was pretty hog wild. I decided, to give myself a little edge, I was going to wear one of the thongs I had pinched from her drawer, and that gave me a pick-me-up for confidence. I got a lot of compliments having never met my sister’s beautiful girlfriends, and the guys were more or less happy to entertain Tammy’s kid brother.