Give a toast at my brothers wedding?

My (I am 27) brother (he is 30 or 31) is getting married and he asked me if I'd like to make a short toast during the reception. As you may have guessed, we are not close at all (hence how/why I'm not sure of his exact age) and used to fight and argue constantly when we were children. He caused me great physical and emotional pain as a child, adolescent, teenager, and young adult. I don't let his bullshit get to me anymore though (he still spits a lot of it and I try very hard to ignore it) and at this point we are just civil because anything else would take too much energy. Occasionally we'll get into minor arguments but mostly we just stay out of each others way and rarely talk or see each other.I understand that it would be nice for everyone if I gave a short toast but I have no clue what I would say. I have nothing nice to say about my brother or his fiance other than normal stuff: they are smart, seem like they are in love and good for each other, and that I wish them happiness.I feel like the guests may think it's weird if I don't give a toast since I'm his only brother. Is that true?Should I avoid giving a toast if I don't think what I can say would be interesting or fun to hear? I have no problems with public speaking but I am a terrible writer. I would not under any circumstance lie or make it seem like we are any closer than we actually are - I am just not comfortable with anything but pure honesty.What are your thoughts? Would you give a toast? If so, what are some starting points for what you might write?Any thoughts, advice, criticism, etc is welcome! Feel free to PM me if you don't want to reply publicly. via /r/wedding http://ift.tt/2u5q4RD