I was helping out this family who were moving away. In the family there were three girls aged 15, 16, and 18.
I was moving boxes downstairs to the 18 years old room, after I was done I went through her drawers and grabbed one black thong and a bra. I jacked off with the bra and shot a load in one of the cups. I stuffed the thong in my pocket and put the bra back.
I was going back upstairs to get the last box when their mom said she was going to go get something somewhere. When she left, I was alone in the house and went to the other daughter's room. They shared rooms, so I went through their drawers. The 15 year old was really hot, she was a petite brunette with a nice ass and good boobs. I grabbed four of her panties and three of the other girls. I grabbed one more from each and started masturbating with them. I layed down on one of their beds and jacked off with one panty around my cock while sniffing the other. I shot a big load into the crotch of the 15 year old panty and put it back like that. I wiped the rest of my cum onto the other panty and put it back. I grabbed two more from a pile of dirty clothes and put them in my pocket.
I was still there alone and was still horny so I went back into their room again and grabbed a handful of panties and went onto the bed and started jacking off with them. I would masturbate with one pair until I was about to cum then wait for awhile then jack off with another and wait again. I did this several times, when I could no longer keep it in, I got up and put them all into a pile and shot another big load onto all of them. I went into the washroom to wash up and their mom came in, I said I was going now and left.