Hey and welcome! I'm Mimi and I have Vincent the Gemini. : D Me and you can be in the same boat haha because I'm not huge into AIM either, and I'm sure that you'll be just fine RPing!
I don't know if Vincent would know Ami, and if so, he might have met her through Emmeline or bumped into her? He could definitely supply terrible and corny jokes as well. : D