A polyamory relationship

“I want to join your relationship and be both of your girlfriends, and for you to be my boyfriend and girlfriend. I feel different about you two from my other fucks, like I have genuine feelings for you. Will you give me a chance?”

Harry and Hermione look at each other with a shocked look on their face. This was a big ask. They just found each other and was just getting comfortable in their new dynamic and Luna wanted to hop in on that? How would that effect their relationship, with each other and Luna?

Not wanting to shut the idea down straight away Harry told her “give us some time to talk this over. This is a big decision and we can’t take it lightly. I’ll make sure to send you an owl when we have an answer”

“That’s fair, I wasn’t expecting an answer straight away. Even if you don’t want to, thank you for considering it” and with that she got up and skipped over to the Ravenclaw table.

Hermione leaned into Harry’s arm and told him “I guess we have a lot to discuss after we finish our homework”

After they had finished they went back up the room of requirements (with a grand bedroom design), led down on the bed and started discussing.

“So… Luna. What do you think?” Harry asked, feeling the tension in the air

“I don’t know what to think. I understand that feelings can’t be helped but we’re still trying to figure out what we are”

“That’s true, but don’t you think that this would also be the best time for opening our relationship? If we were to comfortable than Luna just wouldn’t be able to fit in. This way we can adapt to a poly relationship and if it doesn’t work out then we can break it off with her. Besides, don’t you think we owe it to her to at least try?”

“I get where you’re coming from but…”

They spent the rest of the evening debating the topic until they finally came to a decision Harry got a quill and parchment from the room and wrote the note to Luna, look it up the owlry and chose to give it to a school owl, so the other students wouldn’t get suspicious of Hedwig.

In her dorm room, Luna was thinking about what would happen if they declined her offer. The wedge it would drive between them. Would they even want to fuck anymore after that? Just as she was thinking of all the senecios there was a tap at the window and a brown owl was there with a scroll of parchment in its beak. She rushed to window to let it in and unraveled the letter.

“Luna, we have made our decision. We have decided to…