>>53962761It's hot, so the girls are cooling down by standing in front of a (rotom) fan and lifting their skirts/shirts to get cold air under them. Iris is making funny faces by putting her mouth right in front of the fan to make her mouth flab because
she's such a kid.
When Satoshi pokes his head in to ask if they want watermelon, Serena and Kasumi both embarrassedly cover themselves up, while Hikari just keeps standing there with her panties on display because she's that much of a slut.