Wear the dress or don’t go.

I am really sorry you're going through this. I have a few tattoos myself and I know for a fact my sister would never ask this of me if she was getting married. Although I naturally like wearing dresses with sleeves anyway. Honestly in this situation to keep the peace, I would just wear the dress proposed. Try to dress it up in a way where you feel comfortable. Perhaps add an embellished belt, or a striking necklace. Or do your hair in a beautiful way that compliments the dress. Anything you can do to make the outfit less intolerable. All the best

You have to choose your battles. Is this one worth damaging your relationship with your sister and mother? This is a one-time thing that could have long-lasting repercussions. Be very sure of your decision if you choose not to go to the wedding. But in the end it is your choice.

I think it's a little ridiculous that they won't just let you pick another long sleeve dress but she's the bride. In the grand scheme of things, nobody cares about what the bridesmaids look like. It's her day. I'd suck it up and go support my sister.

It's definitely bad manners that she's asked you to wear an uglier dress than everyone else because you have tattoos, but as a bridesmaid, part of that responsibility comes with wearing ugly dresses sometimes. I have worn some REALLY terrible bridesmaid dresses. And I've worn great ones, too! Often, brides don't give their maids a choice. I think it sucks she's singling you out, but I do agree that sucking it up is what you'll have to do.

I've worked in places where I had to cover my tattoos or remove my piercings - I did it because I liked the job and needed the money. It's a small sacrifice to make for your sister's big day. And guess what? Some day when you get married, you can make her wear that ugly dress in return! I'm petty as hell and would definitely do that!