MUGF-003 My sister is a gal and always wears erotic panties

I love women's underwear. My sister is a gyaru, so she only has flashy colored panties. When I see T-backs peeking out of short skirts and extreme underwear in the laundry, I can't stop my irrepressible desires… I'm in agony. Ah, I want to wear it… I want to lick it… I want to smell it… I want to be wrapped up… I want to chew on those panties…