ミニワンピース衣装の高町なのはとフェイト・テスタロッサによる♪Sweetiex2♪です。
ワンピースを徐々に透過させています。
通常版も公開しております、気が向いたらそちらもどうぞ～。
通常版 URL : https://youtu.be/oifADJ-vQ60

The following is English explanation.
Title : [ MMD R18 ] It is a ♪ Sweetiex2 ♪ penetration version in Nanoha and Fate.
It is ♪ Sweetiex2 ♪ by Nanoha Takamachi and Fate Testarossa of the mini dress clothing.
It makes it penetrate into a dress gradually.
It is making public a version, too, generally, please there, too, if a feeling turned.
General version URL : https://youtu.be/oifADJ-vQ60

Still more, this English is a decodement by the translation software, we think that there is the part which the interpretation is difficult by probably but please pardon.