Confidently throw back the covers and retrieve your clothes.

You throw back the covers and make your way around the room, caring nothing that your youngest sister was seeing you without clothes, your morning wood prominent before her. Out of the corner of your eye, as you purposefully and determinedly retrieve your discarded clothes, you feel her eyes tracing your movements, watching your jutting cock as it swayed from side to side. You see her move from foot to foot, somewhat awkward with this new experience.

The thought that you might easily be the first man she has seen naked heightens the thrill, and your cock gets harder. You hear a slight intake of breath from your sister and she turns away sharply as you turn to look at her.

"Jon! You could have told me to wait outside or given me some warning you were going to jump out of bed like that!"