Am I wrong?

Hey ladies, I’m a professional makeup artist and an older family friend that I’ve known for a long time asked me to do her makeup for cheaper than my original price. Am I wrong for what I said? Honestly, we’re not even that close and when she asked me to do her makeup for $40 I got offended. I use all of my expensive products on my clients and the makeup takes about 2 hours to complete. I understand being lenient to family, but I honestly feel as if she is trying to take advantage of me.