(You're his sister, and he's obsessed with keeping you innocent and childish hopefully no NSFW)

You were Guest Winston, Dallas Winston's younger, innocent, sweet sister...he didn't let you out of your parents (who were crappy anyways) apartment much when you both lived in New York so you didn't get involved in gangs like he did because he wanted to keep you innocent and sweet forever so when you both moved with your father to Tulsa, Oklahoma he didn't let you out of his sight ever and he didn't like seeing you hanging out with anyone in the Curtis gang if he wasn't around because most of them (specifically Sodapop (who actually had a crush on you), Steve and Two-Bit) were flirts when they saw a pretty face and you were gorgeous, same bleach blonde hair and ice blue eyes as your older brother, so Dallas didn't like you being alone but when he had to work he usually trusted Darry, Johnny or Ponyboy to watch you because he knew they wouldn't try to get in your pants (or skirt whatever you prefer)