This happened to me when I was studying in college. I was invited by my girl friend to her house in Port Blair which is an Island in India. I took a flight there. To my bad luck she at that time had left her house and was in my native place that was Kerala. Her brother in-law took me to her house. I wanted to pee and went to the bathroom in her room. A most surprising sight laid a feast for my eyes. Her panties were hanging on the hanger. It was pink in color. I went closer and took in gently in palms. It had strange patches, the color of clay. Suddenly it dawned into to me that these patches were traces of menstrual blood. How I kissed and licked her panties with the longing poetry of desire.