Author POV
That day Yizi was immediately discharged and he decided to stay in his fiancee's mansion.
Syu have an emergency mission so now Yizi is alone in the mansion.
He decided to go to the kitchen to cook dinner and make some desserts as he is bored, he is so focused in cooking that he hasn't noticed the time, so he was so shocked when suddenly he was hugged from his back and a pair of lips attach itself on his smooth neck making him gasp, but soon he calmed down as he knows who is the person already from its scent.
He turned around and smiled widely seeing his fiancee, having a very possessive look in his eyes.
"Welcome back Brother Syu". Yizi said cheerfully and hugged Syu who immediately put his arms on his waist.
"Who do you belong to my baby?". Syu asked which confused Yizi.
Yizi broke the hug and looked at Syu in confusion.
"I asked you something baby". Syu growled when he heard no response from Yizi.
Yizi bit his inner cheeks in shyness before he suddenly pecked Syu's lips startling Syu.
"Brother Syu, I-i belong only to Brother Syu". Yizi said in cute baby voice making Syu to let out a chuckle.
"That's right baby, you are only mine okay, remember that". Syu said and Yizi nodded his head.
Then Yizi took Syu's face in his palms and peppered Syu's face with kisses, from forehead, nose, cheeks, chin, and finally his lips and that is when Syu held Yizi's waist tightly deepening the kiss which shocked Yizi at first but soon gave in letting Syu kiss him to his heart's content.
Syu sucked his lower lips gently before biting it causing Yizi to gasp, and using the chance, Syu entered his tongue inside Yizi's mouth and started twirling and playing with Yizi's own tongue.
Yizi moans in the kiss as he wrapped his arms around Syu's neck trying to copy Syu's moves in his lips.
Syu really did enjoy kissing Yizi, it's their first kiss AS fiancee's but he is already addicted to it, Yizi's lips is soft like a marshmallow, so smooth and taste sweet like candy.
Only when Yizi is out of breath he broke the kiss.
Both of them are panting heavily as they looked at each other. Then Yizi looked away his face burning red as tomatoes making Syu unable to stop himself to bite his cute fluffy mochi cheeks.
Yizi yelped in surprise and pouted which Syu kissed away before taking something out of his pocket then showing it to Yizi.
Yizi's eyes beamed seeing the Sun pendant on Syu's hands then looked at Syu.
"Is this mine gege?". Yizi asked.
"Yes baby, my gift for you, for me you are a little sunshine, your smile, your giggles, your cute voice and beautiful and cheerful expressions always brightens my day, you are my little sunshine and this past few days I had fallen really deeply in love with you AGAIN, this marriage night be arranged at first but Yibo, remember this I fully accept this marriage from the beginning as from the first time I saw you I had fallen really deeply for you, and I am still continuously falling for you, so please be mine Shiono Yizi, only mine forever, be my one and only". Syu said as he placed the necklace on Yizi's neck while looking at Yizi lovingly.
Syu's words touched Yizi so much so with a teary eyes he give Syu a big peck on his lips before nodding.
"Yes Brother, I am only yours FOREVER". Yizi said then he went near Syu's ears whispering something which made Syu smile so wide.
They cuddled for few more minutes before Yizi continue his cooking with Syu helping him, and after that they ate their dinner, get freshened up and cuddle each other the whole night.