The translator did the same thing earlier, using Spanish. They're just having some fun is my guess. What's next, Russian?
Please, sis.But... that felt good for me, you know?I...For my sister...!I won't be able to hold back my true feelings...If I kiss her again just like that...Hng ♡I want to do it one more time.That was the dayEhhh...?Not good.This is not good...Wa-Wait!!Sayo!My sister...For this kid...Hawawawawa!!I fell in lovewith my little sister.Eh!?