I cosplay with my girlfriend every year and must say it is a lot more fun than doing it alone (I've also noticed you get more attention). I would highly recommend, it's a huge bonding experience and let's you share your con with someone.
Check out my work at: jacobcosplay.tumblr.com
Current commission: Deadshot from "Suicide Squad"
Personal Project: Kylo Ren and Captain Phasma from "Star Wars"
Dream Cosplay: Samus Aran from "Metroid"