The Black Death (Op reader x Highschool DxD)

Meeting and Greeting

'Aaaaaa' =Thoughts
"Aaaaaa" =Speech
*Aaaaaa* =Actions

LIME/LEMON WARNING

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Sona: "...and this is our garden."

Y/N: "Wow, your house is really nice, Sona-chan."

Sona: "Thank you, Y/N-sama."

Y/N: "Just Y/N."

Sona: "Ok!"

Y/N: "Do you have anything else to show?"

Sona: "Oh, I forgot my room. It's just near here. Follow me!"

She leads you to a room with large doors. She opens it revealing a room just as big as the doors.

Y/N: "......wow, this is a big room, this is your room, right?"

Sona: "Yep, this is where I play with Rias."

Y/N: "Rias? Who is that?"

Sona: "Rias Gremory! She's my friend. She comes here every week with her brother and we play!"

Y/N: "Hmm, could you describe her and how she's like?"

Sona: "Umm, she has red hair and she's mean."

Y/N: "Haha, mean, you say? She must have done something really bad for you to describe her that way."

Sona: "Yeah! Whenever she comes over, she always doesn't share her toys!"

Y/N: "Hahaha, I can't wait to meet her."

Sona: "You can fly right?"

Y/N: "Yup."

Sona: "Can you let me ride your back while you fly?"

Y/N: "Hmm, since I would be carrying someone, that would require me to transform into my dragon form. Are you sure you won't be scared?"

Sona: "I promise!"

Y/N: "We should head out to the garden first, okay?"

Sona: "Okay!"

(MINI-TIMESKIP TO GARDEN)

Y/N: "Ok, this area should be wide enough. Sona, you should take a few steps back."

Sona moves far from you and as she does so, you start to transform. First, your body starts to enlarge at an abnormal rate as your body parts morph. Your face, quickly turning snout-like. Your hands enlarging and forming claws. Your legs bending as wings sprout from your back and a tail emerges from your hind. As all this happens, your body starts darkening at a quick pace, to the point where you are almost invisible in the darkness. 

Y/N: "..and I'm finished. What do you think, Sona-chan?"

Sona approaches you with what looks like glowing stars in her eyes.

Sona: "Wow! You look so cool!"

Y/N: "You're not scared?"

Sona: "Nope, I think you look cute instead."

Y/N: "Why thank you. Stand still, I'll pick you up."

Your use your clawed hand's tips to pick Sona up by her collar and put her on your back.

Y/N: "Enjoying the view?"

Sona: "Yeah! It's so high up!"

Y/N: "I want you to be safe, so I'll make you a bone harness. Bone Guard."

Bones cover her whole lower half, rooting her to your back.

Y/N: "There, you should be safe now. Are you comfortable?"