It was my turn to do the family laundry that week. As I was cleaning the clothes hamper from each of our rooms, I noticed that some of my panties were missing from my hamper. I had never paid much attention before, but I had just purchased a couple of new, really hot pairs, that I wanted to be sure got cleaned.
Heading down the hall to my brother's room, I noticed that his door was partially open. Not thinking, I just barged in. I immediately found out where my panties were. There was brother laying naked across his bed with the crotch of one pair pressed to his nose and mouth while he was jacking off his cock into the other pair. As I stood there staring...he was already reaching the point of no return. Groaning, I watched his hand fly up and down the length of his cock. Suddenly, I saw his cum squirting through the meshy material of my panties. The cum flew in all directions, onto his legs, stomach and onto his bed sheets.
As soon as he relaxed, he started apologizing and promised to never do it again. Seeing an opportunity, 'I made him an offer he could not refuse'. 'You like smellin' and jackin' in my soiled panties, huh, little brother?'
He sheepishly agreed he did and said that this had not been his first time. 'Tell you what, you take one of my weekly clothes washing duties, and I will keep you in used panties anytime you want them. Deal? And, I get to watch when I'm around.' He readily agreed.
Since then, I always know where my panties are if I don't see them in my hamper. I get to watch him stroke his cock and shoot cummy messes in my panties. I wonder if he would take my other week of laundry duty if I offered to 'lend a hand' sometime?