Some of the girls show off a decent amount of skin, or have outfits that show them wearing underwear-like clothes.

One episode has a girl repeatedly force kisses onto her friends. (There is nothing sexual about this, though her friends do blush when it happens; she is a prairie dog and this is simply how they greet each other.)

Infrequent references are made to the mating season in an educational context during the segment of the show in which real facts about animals are discussed.

A group of girls sit in a hot springs together in one episode (only their shoulders are visible).

The Friends are occasionally threatened by creatures known as the Cerulean. It is implied that they will devour/eat anything they can get their hands on. This leads to some mild threatening/chase scenes, as well as some very mild violence when Cerulean are defeated (they simply explode into blue block-like matter).

Rare use of very mild slang/insults ('jerks', 'kick their butts', 'that sucked').