Aron is your mom's best friend's son and you are staying at his house like every summer for a little vacation

One night your parents decided to go out and you're taking care of his little sister

(He is 29 and You are 17)

Once it's bedtime you put her to bed and go downstairs to drink some water when you hear someone say from behind "Hey..." You turn around and he is starting at you in a good way (you are wearing your pj's and your 'bra') and you are surprised cause you were never close.