Wealth, materialism, physical beauty, and social status are central themes.
Some arguing between the women and their partners, as well as some catty exchanges between the housewives. Some visible pushing and shoving, but it's more playful than violent.
Some strong sexual innuendo, including mild references to male genitalia. Some of the women wear bikinis (including a thong). A male tennis pro teaches with his shirt off. Also includes discussions about pole dancing, stripping, and promiscuity. Ramona enjoys dressing provocatively. One of the kids makes references to lesbianism.
Audible language includes words like "hell" stronger cursing is bleeped out.
High-end brands like Ralph Lauren, Aston Martin, etc. are prominently featured and discussed at length. The women are very consumer-driven and care a lot about material signs of wealth and status.