Ande said: Other than the clothes, who can tell the difference? That said, just turn the lights out, and pretend.
You don't even need to turn off the lights; they're freaking identical. Remove the clothes and don't look at the differing facial expressions and there you are.
Actually, you can tell them apart with their hair style above the forehead and their behavior. Manya has her flat down and is more eager. Minea has her hair parted and raised to the sides and and is shy.
Updated
Did you think it was going to be Manya-san?Too bad!! It was just Minea-chan!!Fully-colored
Cross-sectionsAdult mangaMinea
Loves: Heroes
Play: Sex
Sexual position: Piledriver, StandingManya
Loves: Lickspittles
Play: Interspecies
Sexual position: Sandwiched