Sisters who both run siscon blogs. One of them comes across the other's blog and the quickly become moots. Neither of them has any idea who the other is.
Sisters who roleplay as sisters in DMs. While they both think they're chatting with a stranger on the internet, they're actually just across the hall from one another as each of them gets off to the though of acting all of it out with her sister.
Sisters who, after chatting for a while with their "internet friend", realize that they actually live in the same city, and decide to meet up.
Sisters who are both getting around on the day of the meetup and ask each other what they've got planned. Big sis goes first, "Oh I'm meeting up with a someone from tumblr I've been talking with for a while."
Little sis is surprised, "You too? I didn't know you even had a tumblr."
Big sis laughs a little, "I didn't know you did either." She starts telling little sis about what she has planned for the day, but when she mentions where they're meeting, little sis freezes in her tracks.
"Umm..." little sis hesitates for a moment, but pulls out her phone, pulls up the blog she's been talking with, and shows it to her sister. "I- is this you?"
Big sis stands there in shock for a moment. "How did you-", the realization dawns on her before she can finish her sentence. She pulls out her own phone and pulls up their conversation. "Does that mean this was you all along?" she asks, showing it to her sister. Little sis nods. They both stare at each other for a moment, unsure of how to proceed. Then, nervously, big sis takes a step forward, putting their faces mere inches from one another. "D- does that mean... you also... want to do this...?" Both of them are blushing and their hearts are pounding as they both slowly lean in. Their lips meet, just a gentle innocent peck at first as they test the waters. As they gain more confidence though that both of them want this, they quickly escalate, moaning deeply into each others' mouths as they each desperately shove their tongue down the other's throat. When they finally came up for breath, they were both panting heavily. After catching her breath, little sis was the first to speak.
"I love you too," big sis replied.
