Reincarnated in another world as a great one

A new toy?

As I wake up from what can possibly be one of the best naps I had since I was born,I notice that something is holding my left arm in place while looking at what's holding my arm I saw a loli with long black hair that reaches her waist sleeping naked with a happy expression on her face.
'To think that such a cute little girl is a terrifying dragon well not that it matters since she's my little sister' while thinking of such things I hear her mutter something that catches my attention.
"Stupid onee-chan...not letting me kill..."
'So is she mad that I didn't let her kill humans...let's see here what other kingdom is near my territory hummm the holy kingdom Rhuile is close but will she be able to handle it hmm let's just make some counter measures but what do I do' as I was thinking of what to do I looked at my little sister and casted appraisal.
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Tiamat Morningstar
Gender female
Race Demonic Arch Dragon
Age 6,000+ years
Level 7,999(1%)
Hp 69,572,000(???????)
Mp 58,594,300(???????)
Strength 695,720(???????)
Vitality 658,681(???????)
Agility 659,689(????????)
Dexterity 601,278(??????)
Intelligence 585,943(??????)
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'Is it just me or has her race changed from Arch dragon to a demonic version of it...well shit I don't even think I need to come up with counter measures considering how strong she is...well I can add some emotional support for her well time to make the transmutation skill' while thinking of creating a new skill my eyes starting roaming Tiamats body 'you know if she's gonna keep sleeping naked on my bed every time then she'll be fine if I do the deed...right?'.
As I sit up on my bed I move Tiamat unto my thighs all while my hands roam her body,as I pinch her pink nipples she lets out a quiet moan while doing that I nibble on her ear and bring my hand to her pussy and start stroking it.
"Hmm...onee-chan?"as soon as I start stroking her tiny pussy she wakes up and looks at me with confusion in her eyes before she smiles.
"If you wanted to do it you could've just told me onee-chan"
"It's just that you were to cute when you were sleeping"as I reply I lower my head and kiss her on the lips which she happily accepts all while I plunge my fingers into her tiny hole making her let out a muffled moan,as we separate our lips making her look a little bit dejected I then summon my succubus side making her wide her eyes in surprise.
"When you become a succubus onee-chan?"
"Well I made a deal with Asmodeus but your wrong on the succubus part since im a succubus queen"while replying I take out my fingers from her pussy and shove my tail deeply inside her making her orgasm with a single thrust all the while she starts looking at me with longing eyes.
"You really are impatient aren't you"before she can respond I kiss her while my tongue dominates her mouth while I pinch her harden nipples.
'Don't I have a tail...' as I finish a grin appears on my face,before she can cum I take out my take my tail looking at me with a questioning gaze my response was looking at her with a grin,before she can say anything I lift her up and shove my tail up her ass making her orgasm with a loud moan all while I slowly let her down letting my tail go deeper inside her ass while I shove two of my fingers into her pussy making her cum,as soon as she feels my tail getting thicker she looks at me with eyes filled with terror and a little bit of lust making me smile before I start thrusting my tail and finger making her let out a huge moan as she cums making the bed sheets get even wetter.
"Thats...not fa-"before she finishes I kiss her making her melt and looking at me with affection in her eyes,before we can go for another round Beth enters looking a little bit troubled after all she did stop her two mistress from going any further,as she enters I sense Tiamat looking at her with a scowl for interrupting us.
"So what happened?" I ask her not even bothering to hide my displeasure making her looked troubled before she answers me.
"The Holy Dragon King requested if she can meet you". At her response all I do so just sit there before telling her to lead the dragon king to the guest room.
"Oh and tell Mio to make me coffee" at my request she bows her head and before she leaves I use my agility stat to its fullest to take her mouth which was a surprise to her but she doesn't resist.
"I hope you know what happens when someone disturbs my fun riiiight"I playfully smiled at my maid making her blush a little.
"Of course my mistress" as she responds I see her looking at me with lust in her eyes before she leaves.
"So what do you think Tiamat"at my question my cute little sister cutely tilts her head before responding.
"Am I having another toy?"at her answer all I can do is nod and pat her head for answering correctly.
"Yes so can you prepare the usual"
"Yes!" She easily says with a huge and innocent smile on her face.
'She truly has absorbed a few of my habits'I think with a hint of pride at my little sister 'now then how will my meeting with my future maid be like'.