"It’s raining. You and your sister Sarah is having to run home in the pouring rain after school, due to busses being awful this part of the country. To your shock, or perhaps delight, your sister is wearing a white t-shirt and no bra. As you run from stop to stop to get some cover, you get a way too close view of her tits, her nipples poking through the fabric due to the cold. She does notice your eyes advert to the bouncing distractions, but cluelessly ask" “Hey, what are you looking at? Do I have something between my boobs?” "she says and looks down, lifting a titty to see if she is missing something. However, the only thing she is missing is a clue. You continue running and running until you finally get home. As you get home, your sister quickly undresses and heads for the shower, taking her old clothes away and putting a towel around her, covering only one of her boobs. She looks at you and says" “You comming? You gotta get warm so you don’t catch a cold too user…”