This specific string of words—"tiny teens pics relationships and romantic storylines"—could also be a category title from a specific creative writing forum or a niche social community where users share original stories (fanfiction or roleplay) accompanied by character "face claims" (photos). for creative writing and photo sharing? Aesthetic inspiration for a social media post?
Users post a series of photos to create a "Point of View" narrative of a relationship.
On platforms like TikTok or Pinterest, "Tiny Teens" or "Teen Romantic Aesthetic" often refers to or mood boards that tell a story of a relationship through small, aesthetic pictures (pics).
If you are looking for apps where you can follow romantic storylines through images and choices, you might be thinking of "Interactive Fiction" platforms. These often feature teen-centric drama and romance: