Giga Giantess Couple

Amy and Jessica are two teenage girls who have been dating for some time. They are from a planet very similar to Earth, but everything is a lot bigger there. They decided to have a vacation on what they thought was inhabited planet. They brought enough supplies to live there for a month. When they got off their spaceships chewing bubblegum, they breathed lots of air and saw what they thought was moss. However, it was cities instead.