Houchi Shimai wa Asonde Hoshii

When I was sitting on a park bench, two cute girls talked to me.
Their parents are still at work, so they invite themselves to my house...
We took a liking to each other, so eventually, they start visiting regularly, without telling their mother.
They let themselves get undressed and sexually excited in the bath...
Then, they do it with several men...

[Translated from DLsite]