This is the first episode of the faptastic anime that we all know.
Caps taken from the OP:
5 minutes in we get a groping scene (is actually a dream from Mio)
This is from the sports festival, that is probably going to be shown in the next episode.
We get Mio and Yuuki ready to do some lwed things with Basara, they are stopped by Kurumi who later gets into the action ( ͡° ͜ʖ ͡°).
Maria almost always in charge of the action.
Some sister bonding.
After this secene we get the two sisters in their bed, I´m sure this would be extended in BD.
Finally we get a shower scene from Chisato.
Service-wise is was a pretty solid episode, there´s at least two nipple sightings, and I’m sure this would deliver in the extended scene on BD. Also it is confirmed (I think, at least that was it says in myanimelist) that this anime will have 10 episodes, that probably explains why the art looks so much better.