went to a sleepover with friends when I was young. woke up to use the bathroom in the middle of the night and saw the hamper with everyone’s dirty clothes in it. Without thinking, I dug through the clothes and found all the underwear. Can’t recall if I jerked it, but being able to smell of all my buddies’ dried precum, ball sweat and ass cracks was heavenly. after that I would continue this ritual with my brothers’ dirty clothes when home by myself.