Sankaku Channel/Search Comments

This:
http://chan.sankakucomplex.com/post/show/1131997
post seems to be a continuation.

This seems to come right after this post:

http://chan.sankakucomplex.com/post/show/1131995

Which explains why she's so concerned with keeping that dildo where it is.

According to the Pixiv comments, she is saying.
「あの…ご主人様…もう少し…下へ…」「ローターもう少し下へお願いします…！」「そんな！？イきたい！イかせて下さい！」「待って！ご主人様！このままじゃ…」「ひどい…」
I added my best translation, but if someone wants to correct something feel free.

Her dialog makes a little more sense if you read the author's description.
また緊縛でローターで放置系です。今回はイキ地獄というより生殺し。ローターは若干クリの上で、微妙に触る程度で固定。気持ちいいけどイクまでは行かない。濡れた下着は快楽ではなく苦しみの証明。奴隷ちゃんが何やらいってるんだけど日本語しゃべってくれないんで捨て置きます。とりあえず気持ちいいんだろうね。よかったよかった。解読できた人はすごいです。コメントで着衣でってあったのでとりあえずメイド服な感じです。
It (very) roughly translates to:
"Again she is bound and left with a vibrator. This time is cum hell rather than half dead. The vibrator is placed just a little above the clitoris. Attached so it just softly touches. It feels good but she cant quite cum. the wet pantie are not pleasing, they are proof of her suffering. Miss slave has something to say, but she can't speak clear Japanese so she ignored. It feels good for now. Good good.
The people who where able to decipher this are amazing. Many clothes where suggested in the comments, but for now I feel like maid clothes."