Brother, can you cum for me already? (R-18)

"...Liana?"

Rain said with obvious confusion in his voice, looking at his little sister, who was diligently fondling his cock.

A thousand thoughts were flying through his head as he tried to comprehend what was happening. Of course, that didn't stop his little brother from getting bigger by the second.

"Hmph, looks like this brother hasn't forgotten what his sister looks like yet."

Liana pouted cutely and then stuck out her pink tongue and ran it over his cock.

Goosebumps of pleasure ran through his body, but Rain restrained his impulse and asked. 

"What are you doing here? Or rather, how did you find me?"

Even though it was only a D-ranked rift, its space was large enough that two people might not meet here even after a month, and if one added the difficult forest terrain and the many monsters, the task of finding a person here became almost impossible. But now, not even a day after entering the rift, and they had already met?