Valentine's Day rolls on, and with the help of cartoonist Carolyn Main, we've created some slightly dirty superhero valentines that offer a more off-color take on the spirit of the holiday. If you're not familiar with Main's work on her NSFW webcomic Sex Wizards, let it be known she has an absolutely filthy sense of humor, which is why we thought she'd be perfect for the job. Jokes about web fluid and bestiality follow!