Is it normal to sniff dirtyt pantys

We got invited out for a meal with friends last Friday and knowing they had builders in tilling their bathroom the downstairs toilet was the one they were using. After going to the pub for our meal we returned for coffee and whisky and I had to use the toilet, as soon as I got in there I went straight for the laundry basket and wow 3 pairs of dirty pantys mmmmmmmmmmm some had skid marks which I licked mmmmm was in heaven but I quickly put them back and returned to finish my drink but before leaving I returned and had a second sniff at them great, daren't steal any as I have got some of hers from previous visits.