My friend's older sister is a gravure idol who won a certain newspaper's grand prize! (Also, she seems to be doing some pretty naughty things.) When I went to a friend's house to see her older sister... her senses seemed to be a little different from those of normal people... she didn't mind being naked, and wore racy swimsuits and underwear. Wandering around the room, flashing and flashing her I cup breasts! When I saw that, I got an erection.