Panties

I stayed up till 6 am doing laundry. When i awoke at 10 I remember I had left two dryers going& went to gather my things. I noticed the bright purple lace panties I had worn last night hanging on the shelf above the washers. I suppose I had dropped them. I held the panties to my face and sniffed the crotch to see if I had dropped them before or after the wash.  Then I noticed the label that said xs  And realized that I had just sniffed someone else's panties