Fantastical Fandom Oneshots

Grover Underwood x Younger Sister!OC

Requested by Magic, my cousin

Koby's POV
I was hanging out with my brother Grover around the edge of the woods. All of a sudden Percy is running towards us and waving towards Grover, he stops when he notices me and smirks at Grover who rolls his eyes. "I'm gonna go deal with him. I'll come back later, yeah?" Grover says and I nod and give him a side hug. He runs off towards Percy, who is still smirking at him. They start a conversation but I'm too far away to hear them.

Grover's POV
I say bye to Koby and tell her I'll come back later, she nods and hugs me before I run over towards Percy. "Hey man, what's up?" I ask him and he smirks at me and raises an eyebrow and nods towards the tree Koby disappeared into. "Who was she? You got a girlfriend man? You've been hanging out with her a lot recently," he asks with a smirk. I shake my head at him, "Every time you see me with her you assume we are on a date or that she is my girlfriend. Every time I tell you she's not, will you stop asking?" I say annoyed. Percy teases me, "Grovers got a cruuUuuUsshhhhh!!" At that I snap, he has been on me for weeks about her, "SHE MY SISTER YOU IDIOT!!" I shout at him then turn to run before Percy grabs me and yanks me back. "Your WHAT NOW?! Since when do you have a SISTER?!" He asks me and I bleat nervously. "Grover has a sister?" We hear Annabeth's voice before she materializes with her Yankees cap in hand. "Yes I do, since years ago, she's 19 but looks 12 similar to how I'm 32 and look 16. Anymore question you can ask her, KOBY GET OUT OF THE TREE AND COME HERE!!" I shout, she melts from the side of the tree and runs towards me tackling me to the ground. "I get to meet your friends now right??" She asks excitedly and I chuckle while pushing her off me and nodding. She jumps up before pulling me with her, "Percy, Annabeth, this is my sister Koby. Koby this is Percy and his girlfriend Annabeth," I gesture between them. "What's it like being his sister? How annoying is he?" Percy asks and Koby laughs, "It's very fun and he's not annoying, he brings me back souvenirs from quests. I got one from Nashville from that first quest y'all went on!" Annabeth nods, "Grover, since I'm meeting your friends does that mean I'm allowed to wander out of the woods now? I wanna see the pegasi!! They're so cool and I wanna ride one so bad!" Koby asks with a puppy dog face that looked more like a raccoon or a fox. I sigh and look at Percy, "You wanna ride a Pegasus?" He asks her and she nods, "Come on, I'll let you ride mine. His name is Blackjack and he is super nice." She nods and follows him to the stables, lets just say I've never seen her so happy.