The twins with royal blood (Belphegor x Reader)LEMON

(Last Chapter) Who is that?!

Note pls, new shortcut:
(u/n) = unknown name
(s/n) = son name
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-Next day morning-
Bel had woken up earlier then you and he gaze at you sleepily. He smirk and look at your sleeping face, thinking it's cute but then you said something in your sleep, something BAD!
You said, "(u/n)..."
Bel was really angry now, cause you called another man's name, even if it's your dream. Bel wanted to wake you up and punish you in that instance but after a little thinking he decided to do something else to you instead of punishing cause he thinks your body couldn't stand anymore 'punishment'.
After deciding, he went back to sleep, not wanting to cause any suspicions that might ruin his 'plan'.
-Few more hours later-
You woke up to the cries of d/n. You then saw Bel sleeping NEXT to you. You blushed as both of you were naked but as d/n started crying louder because she was hungry, you immediately forgot all the embarrassment and prepared some milk for d/n. After giving d/n some milk, you start to prepare things to go out. Bel woke up for the second time and this time he called you. You finished packing just at time and greeted him. He smirk and greeted you back and tried to take a peek at your packed bag but you nervously stopped him, which made him doubt you more. You hurriedly made up and excuse and Bel believed you on purpose. After breakfast, you left the mansion in a hurry, bringing d/n along. Bel followed you without letting you know and so, both of you left the mansion.

After following you quite a while, you went to the supermarket. He see you talking a bit happily with your boss and were quite angry. He thinks, "Maybe my princess hadn't learnt that who does she belongs too, perhaps I should train her more later"

You then left the supermarket and went to an orphanage. Bel was visibly shocked that he shouted, "What?! What is she thinking?!"
Some passerby saw him and were gossiping, "The hell is wrong with that guy?"
Bel ignored them of course and somehow managed to calm down and think to himself, "Wait, maybe she's not here to do what I thought she was going to do.... BUT WHAT OTHER POSSIBLE IS THERE?!?!"

He continues to follow you and also observe you at the same time. He then saw you in one of the orphanage room and one kid went running to you while shouting, "Mommy!!!!"

Again, Bel couldn't hold his surprise and shouted, "What?!?!"

You heard it and looked around but did not see Bel anywhere and thought you heard it wrongly. But you didn't! Bel just hid behind a wall!!! Bel then continue to eavesdrop the conversation between you and the kid.

You :"How have you been, u/n? Are you behaving well?"

u/n :"Yeah of course! I even helped the aunties at cleaning!"

You :"That's mommy's good boy!"

u/n :"Then can I come home with you now?"

You :"Oh, uh..."

u/n :"......?"

You : *smile awkwardly* S-Soon, just continue to be a good boy, okay?

u/n :"But you said 'soon' last time too..."

You :"Sorry....but I will definitely fetch you home someday, so just stay for a bit more, okay?"

u/n :"Alright..."

You hugged him tightly and left after a while. You started sobbing when you left and tried to hide it from passerby, as much as possible. You then hid in an alley and cried silently alone, with d/n watching you worryingly. You wanted to smile to reassure d/n but couldn't and continue to cry to your ownself.

But then you saw a shadow covering you. You look up with blurry eyes and saw Bel, standing there looking at you. You were surprised and tried to run away but he easily caught you. (Of course, he's a member of Varia! XD)