In most episodes, little to none.

In "D-a-t-e-Date?", a young teenage boy takes a picture of his nipple because he is worried about a growth. He later passes it off as a sext from his "girlfriend" to his friends. (The pic is never shown)

None.

Mild words like Hell and Damn are occasionally used.

In most episodes, little to none.

Characters sometimes lose their tempers and yell at each other, but this is done in a comedic, not dramatic, fashion.