Using hiragana implies he doesn't understand the word -- is that actually a thing?
Rather than using the kanji for the word, he's just repeating back the sound- implicitly, he doesn't actually know what it means.
...Thank you for your hard work. *spuuuuuurt!!!*Ah! C-cumming!!!Please give the order should you require mental care at any time.Yes. Assault-dolls are completely obedient to their owner's orders. Is... is this really OK??*creak**slap!**slap!**slap!**slap!**haah*❤*haah*❤*twitch*❤*twitch*❤*ba-dump ba-dump❤*Se...sex...Sex.Sexual... intercourse?
Using hiragana implies he doesn't understand the wordShould Takeru-sama desire it, sexual intercourse is also available as part of the owner's mental care function.Yes. The genitals are also modeled. This is what a girl's place is like...