Innocent Big Sister

(Here's the 4/5 chapter. I won't post the 1 chapter today, I'm too tired. I'll just post 4 chapters tomorrow. And It's my first time writing a chapter scene like this.)

(This is probably one of my worse chapter..)

(Gray's perspective)

When my big innocent sister said that, I felt an opportunity

Should I take advantage of her or not?

Of course yes! It's nothing harmful, plus I'm not really gonna force her to do it if she don't like it.

So I said ''Yes, sister. It keeps going like that when you keep getting naked to me in this past months.'' I said while looking pitifully at her sister.

''T-then what should I do Gray? I-It's my fault you became like this...''

''Umm...'' I'm thinking something... blow job or hand job?

''Try touch it..''

''Okay...'' She then extend her hand and touch it

*Throb*

''!'' When my little brother move a bit, Rias is surprise and move backward.

''Umm.. Gray, what's happening?'' Rias felt a little intimidated to my little brother and asked

''It means, it's really excited to get touch by you.''

''Oh.. I'll do it again'' Then she extended her hand and touch Gray's little brother.

She keep touching it for 2 mins and..

''Umm, what do I do now?'' Rias asked, feeling embarrassed at this situation.

''First hold my penis softly and move your hands up an down.''

Rias nodded,

She moved her hand up and down.

I savored the feeling of her hands rubbing to my glans, body, and root.

''Now use your hands to caress my scrotum.''

'Haaa... The pleasure of doing this taboo with my innocent big sister is to much..

''It's twitching...''

''Just keep doing it.''

She keep doing it for 10 mins later and asked

''Is it better now, Gray?'' Rias asked while feeling a little wet on her nether region.

''No big sis... How about you try to lick it?''

''Uh...'' Rias then nodded with red face.

''What do I lick?''

''Lick my glans first then keep going down until you reach the root part... Like try to lick it like it's an lollipop.''

She then proceed lick it like her lollipop.

''Haah..'' I moaned, she's learning quickly.

12 mins later, I cummed in her innocent face. Some of it got into her modest breast.

''!!'' Rias was surprised. She then quickly move away from my penis.

''What was that!? Gray?'' She quickly asked. She didn't get a class about the opposite gender so she don't know. She's still too young.

''Umm, I don't know...'' I shrugged.

She then touch her face and look at sticky substance at her hand.

She tried to lick it.

'It's good! perfectly balance flavor as should be! Maybe I should do this everyday with Gray...' Rias thought.

But when she thought of that, she became embarrassed at her own thought!

'What are you think Rias!? He's your little brother! He's just asking you to help him. Besides it's my fault he became like that...'

''Umm, Bis sis are you okay? Did you hate that I release it without your permission?''

''Uh.. No! It's okay! But are you okay now, is it not hurting anymore?''

''Yes.. It's enough.'' I said. I shouldn't take her advantage to much. What if she hates it in the future.

''Okay.. I'm going to clean myself first. You should go to sleep now.'' Gray, nodded. Of course he won't going to sleep, unless he wanna suffer to nightmares again.

Rias then go to the bathroom in her bedroom, closed the door and open the shower. She then tasted the semen again before clean them from her body.

'Hah... What am I doing to Gray? I said before that I will protect him from stuff like this but... I'm the one taking advantage of him doing stuff like this...' Rias thought while cleaning her body with water.

''I would stop doing this things from Gray again!'' Rias swore to herself.

'Maybe I should find some talented people for my peerage next year...' Rias thought while cleaning herself.

When she's done taking a shower, she took her tower and rubbed it to her beautiful crimson hair and cute petite body.

When she's done drying herself, she got outside of the bathroom and go to the bed.

She sit down lay to the bed, while hugging me to her breast. 'It was wonderful.'

''Good night, Gray.'' She kissed my forehead before going to sleep.

But...

When she's going to sleep, she felt something on her breast.

It's my breath. It's hitting her and making her sensitive. It's not an ordinary breath. How can a breath aroused them?

''Hnngg..'' She tried to muffled her moan with her hand.

''Hah... Gray, you little naughty boy. Even with your breath is making like this...''

Rias then proceed to hugged me tighter, so she can ignore the pleasure of my breath in her breast.

'This is enough about taking advantage to her.' I thought then let Rias to sleep.

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(Fourth person's perspective.)

''Uwaah...'' Rias yawned when she woke up.

''Hm..?'' She then looked at Gray's fake sleep. She then kissed his forehead again.

When she did that, Gray woke up.

''Hm?'' He look at his sister.

''Oh, sorry Gray for waking you up, and good morning!'' She then again hugged her precious Gray.

''Hm, It's okay sis.. and good morning too..'' Gray said while her breast is on his face.

'I wonder how does she grew a breast like this... If she's like this as a kid, then how would her breast look like when she grew older..' Gray thought.

''Umm sis, you're hugging me to much..'' He honestly wouldn't mind to die, suffocating on this breast but he would die and spend another long time to find this world again.

''Oh! Sorry..''

''It's nothing serious and you should put some clothes on..''

''Oh okay.'' She then put her pajamas on. It's purple colored.

Gray then sensed something. The nekomata sisters woke up and it's causing commotion because the older sister is wary to the doctors and tried to protect her little sister.

Well he already sense Penelope running towards to Rias room

She bursted from the door and called Gray.

''Gray! those sister woke up!''