Its just what older brothers are like. They're dicks at times and like to one-upmanship their young bruv. I was small, skinny and underdeveloped as a teen and early twenty-something. I looked like a dweeb. My older brother was tall, robust and better looking than me and had no problem getting decent-looking girls. When I was 17, he 18, I remember him pointing at a really morbidly obese girl when I was out sitting on a bench in a mall with him and his (attractive-) girlfriend at the time. He said "maybe she would give you a chance". It was met by laughter by his girlfriend, who was my age.