You were playing around in your room, when your sister Ciri came into your room, to your surprise in revealing lingerie. You immidietly noticed by her voice: she was drunk. 'Hey user, I thought "hic" I'd check on you. It's about time for training..' You can't resist a few looks to her bra even tho you have never felt this way about your sister as you do now. She would still never want to do inappropriate things with you, but maybe you can convince her in a way.