My exes sister came to stay at our place for a few days. mid 30s brunette, good figure. very hot and always talking about sex

She brought a bag with her clothes that she left in the hallway. When she was out, I had a look inside and found thongs and black silky knickers. 

Very heavy white cunt stains all over the gusset. she must have been playing with herself loads. Needless to say I had a good sniff and wank before putting them back.