At a park near the school. Masamune actually brought Sagiri here. She was intrigued as to why her big brother had brought her here. But she got her answer soon.

"Onii, Onii-chan! Ah~!" She changed the way she called her completely after she knew that her big brother also liked her. He said it to her while they were walking to the school.

She was really happy now that she knew her feelings were reciprocated. They weren't related by blood, so their relationship was not considered taboo in their culture.

Masamune had dragged Sagiri into the men's restroom. He pushed her into the restroom before starting to caress her all over. Sagiri had never felt like this before. She was extremely excited.

She was now both embarrassed and thrilled at the same time. She was going to allow herself to enjoy this forbidden moment.

"Sagiri, your smell is really nice." Masamune spoke next to Sagiri's ear.

He slowly inserted his hand into her skirt. before slipping into her clean white underwear. His other free hand was tucked under her school uniform. before slipping inside the bra. Her breasts weren't that big, but they felt full in his hand.

"Onii-chan~" Sagiri began to call Masamune with the holy word.

It made him even more excited. He slowly massaged her chest. and played with her nipple. Sagiri was buckling. She must have felt very good.

Masamune felt that her lower body was already wet. He slowly removed his hand from her underwear. before pulling down her pure and cute underwear. He then kissed her neck and whispered, "I want you."

"O—Onii-chan wanted Sagiri? W—Well, please eat me well." Sagiri said it with a shaky voice. She really allowed him to eat her. She must have waited all this time for this moment.

'What a stupid brother you are. Well, I will have her for myself then.' Masamune didn't know why the previous owner of this body hadn't eaten her yet. But he won't complain, as virgin girls are very rare in the apocalyptic world.

They were auctions at a high price.

"Sagiri, bend your ass for your Onii-chan." Masamune ordered.

Sagiri heard what Masamune said. She was hesitant for a moment.

For the first time, everyone would be afraid. Masamune slowly whispered to her.

"I wanted to do this with Sagiri for a long time. If Sagiri does it with me, aside from Sagiri being my cute little sister, Sagiri will also become my lover." Masamune persuaded her with his evil mind.

Hearing the word lover, Sagiri's nipples became stiffer than before. She nodded before slowly leaning her backside toward him.

Seeing this, Masamune grinned widely before pulling his cock out of his pants.

"Please be gentle with me." Sagiri said it with anticipation. She always imagined doing it with him since a long time ago, and now they were going to do it.

Masamune grinned before slowly inserting his flesh into her little pussy.

"Ah~*moan*" Sagiri moaned when she felt his cock go inside her pussy. She had been waiting for this moment for so long.

Masamune could feel that as he slowly put his cock inside her. He felt something blocking his cock. It was tight and warm, making him even more excited.

'She is really a virgin. I've never done it with a virgin girl before.'

Masamune licked his lips. He could insert his fleshy cock head into it. He slowly inserted the rest. It's a bit difficult to break the hymen.

Masamune, who was currently touching the hymen with his dick, had to break through. He used both of his hands to hold Sagiri's waist. before pulling her waist closer and slamming into his cock.

"Ah! It hurts, Onii-Chan. Sagiri hurts!" It's hurtful but also pleasurable.

"It will pass, You have to endure it a bit. Onii-chan will take care of you from now on." Masamune felt really good. Her pussy was top-tier, and he would enjoy every second of it.

Blood slowly flowed from Sagiri's pussy. Masamune, after breaking Sagiri's hymen, then waited for Sagiri to adjust a little. before starting to fuck her gently and then beginning to increase the pace.

Sagiri, after going through a period of pain, started to feel very good and very sensitive. She moaned his name from time to time.

"Ah~ Masamune-Onii-chan. Sagiri feels really good. Please fuck me harder~" Sagiri moaned, feeling a mix of pleasure and slight pain.

She never thought that being fucked would be so intense and satisfying.

"I will make you feel even better," Masamune whispered in her ear, increasing his tempo. His cock was wrapped tightly by her godly pussy. It sucked him even deeper, sending waves of pleasure through his body.

Masamune fucked her for a while. And it was time for him to let go. Without hesitation, Masamune immediately slammed his cock into Sagiri's womb. He wanted to mark her with his semen.

Masamune released his seed deep inside her, claiming her as his own. Sagiri cried out in pleasure, feeling him fill her completely.

With a satisfied smile, Masamune pulled her close and whispered, "You belong to me now."

Sagiri, who heard Masamune declare that she was his, couldn't help but smile with joy.

"From now on, Sagiri belongs to Onii-Chan." After that, the two of them started doing the second round and many rounds after. until several hours have passed.

So the two remembered that they had to go to school together. But who cares about that now?