For you, would stripping your sister of her clothes, evaluating her body, and making choices her in front of her friends help you and your sister develop a relationship?
Moreover, you have made mistakes with your sister many times, or have done things she does not want, and your sister despises you by calling you a pervert. Does that really help?
If it were me, instead of undressing her in front of her friends or, conversely, undressing her friends in front of her, I would talk to her, apologize to her, and take her out for a meal.
I think this is common and normal.
And it is true that this is common and normal.