Try and explain...

"YOU'RE SO FUCKING SICK!" Nat yells at you from the end of the hall as you stand there covering yourself with your hands... You decide to try and calm her down... "Listen I forgot my underwear and I..." You attempt to explain to her, using your hands to try and motion what had happen... You see Nat's face change from anger to... Something else entirely and notice her eyes aren't on your face... You look down, following her gaze to notice that you had uncovered yourself while talking... Your little cock is barely poking past your equally little nutsack and you see a smirk crack on your sisters lips when you look back up at her... You feel your blushing get even more intense...

"Oh my god..." You hear her say under her breath... "That is just pathetic..." Your hands drop to your side as you give up explaining... "No wonder you can't get a girlfriend!" You hear her quip and she simply walks into her room chuckling to herself...