[Namjoon's POV]
"Jin wait!!!" I called but its already too late: he already left.
"Dr. Sejin you know for a fact that we are not really related by blood and most importantly you also know from the very beginning that I love Jin so much. So please do not intervene in our relationship. Don't worry when mom and dad got home I will be the first person to tell them..." I said to him.
"I know that. I am so sorry if I said those. those words without thinking. I am just worried for you two. Answer me honestly Namjoon. Are you now ready for this commitment?"
"Yes, 100% ready. I've already saved up money for us for quite awhile now and I also have a stable job." [A/N - just to make everything clear Namjoon has already a Job on their family business but still studying because of Jin."
"After all this years I no longer see you two as an outsider but as a child of my own so please take care of Jin— so as the baby..."
"Thanks Sejin hyung. I surely will but I need to go now Jin needs me..." I said. After bidding our good byes I hurriedly left.
I hope Jin and our baby is fine...
---------
"Jin are you there?" I ask while I knock on Jin's door but I didn't got any answer.
"Sorry Jin if I said those things you know that I love you right? Please let's fix this for our baby... I am just in my room if your already ready to talk about this ok? I'll leave my door open." I said then went in my room.
[3rd Person's POV]
When Namjoon is already inside his bed he just decided to sleep. On the other hand Jin, wanted to prove something, did a very unexpected thing that woke the other.
Namjoon woke up by movements on top of him when he open his eyes he saw Jin riding him raw.
"Jin?!" Namjoon exclaimed flustered on what is happening.
"A-ah... D-daddymhm... Ple-please help me..." Jin uttered on Namjoon's ear before giving it a kitten lick.
"Oh fuck..." Namjoon whispered then changed their position he is now topping Jin while he thrust his whole member in Jin making Jin scream obscene sounds...
"D-daddy there please... Mhm- ahhh m-more..."
Namjoon cannot anymore contain himself and started thrusting faster and deeper in Jin...
"D-daddy I-mhm going to ahhh! cum..."
"Me too baby..." With a few more rough thrust Jin cummed on his belly not so long after Namjoon too cummed.
"(Panting) Jin why did you decided to do this?" Namjoon said after he collapsed on Jin's side.
"I-I just want to prove you that I am worthy of your love..." Jin said while he is hiding his face on Namjoon's chest.
"What are you saying Jin? You are many more times worthy of my love..."
"Really?"
"Yes! If you want I will now say it to our parents..."
"Really you would do that?!— but what if they wouldn't accept us anymore?"
"Don't worry I will handle it. All you have to do is to take care of our baby, ok?"
"Ok... I love you Joonie..."
"I love you too princess..." Namjoon said then kissed Jin's hair.
After that you can't anymore hear anything, but soft snores and a not so soft ones...