I'm not an expert on weaponry, so I could be dead-wrong, but that looks like a horrible way to fire that gun.

Inb4 something completely gonzo written inside the heart. (that being probably the doujinshi title)

Oh no, not another one.

This is such a pretty picture of Remilia and Meiling, and then the title.... Face meet palm, and I can't stop chuckling.

honestly this should be added to the hilarious in hindsight pool