No, nothing will infect your phone that way. Since you use kik, I'm guessing you're pretty active on social media, so as mentioned in the guides we shared above, people can know a lot about you if you share a lot on social media.
It is not unusual for new folders related to apps (especially social media and messaging apps) to appear in your Gallery. If you download a photo from one of those apps, they go to those folders. Even if you don't download a photo yourself, the app might cache images temporarily (to make it easier or more efficient to display in the app), which may still then show up in that folder and therefore in your Gallery.