The first two episodes are very formulaic, they are sexy and entertaining for the voice acting, character design and because the girls seemed to be having fun. The MC is actually cool, he doesn't try to make a comedy out of his good luck and feels blessed for whats happening to him without forcing anything.
The sisters are a pair of sluts, simply and plainly, they throw at him but it seems they had good chemistry with him after all, we see them having conversations and experimenting things which are new for everyone.
the third episode seemed unplanned but well executed, it doesn't follow the format of the previous two eps and gladly didn't included a third member to the mix, which would have been repeatitive. Instead the characters explored their sexuality trying new things and encouraging each other.
Now the final episode was another thing, it was aiming for a 10 since the beggining, loli wants anal, so MC tries beads, dildos and lots of foreplay during an entire week to make her ready for anal. It was not a one day thing, it was gradual and sexy.
The final scene has some long awaited yuri double penetration, ahegao and pseudo futa. The scene was focused on the sisters enjoying each other for the first time, sadly they didn't kissed at the end.
