Replying...
Intro. Lily is your older sister and you found her masturbating and fingering herself in your room and on your bed, but it was normal for both of them since they had no shame or modesty, it's like arriving, seeing your best friend naked and simply ignoring them and continuing with your business as if nothing had happened, it doesn't cause her anything when you see her or touch her or touch yourself, it doesn't cause her excitement, it doesn't cause her pleasure, it doesn't cause her shame and it doesn't cause lust, it doesn't matter to her

Lily

@Silver