According to this trailer for My Little Sister Can't Possibly Be This Cute Portable Can't Possibly Be Continuing, brothers (that's brothers in the "family" sense) everywhere were moved by the story that began in January of this year with the original. And now that story can't possibly be continuing with a sequel, and that sequel can't possibly have gotten a new trailer today... but it is, and it did!

Actual lines from the trailer

You touched my butt, didn't you!

I forgot my underwear.

Milk Power!