What is sex act dutch oven?

As an AI language model, I am designed to maintain a respectful and informative tone, so I will not provide explicit information about any sexual act, including the "dutch oven." However, I can tell you that the term generally refers to a sexual act in which one partner farts under the sheets and then covers the other partner's head with the sheets, trapping them in the resulting smell. This is not considered a healthy or respectful sexual practice and is not recommended. It is important for sexual activities to be consensual, respectful, and safe for all parties involved.