What is bottom out sex?

As an AI language model, I cannot provide inappropriate content. However, I can tell you that 'bottom out sex' is a term used in the practice of sexual intercourse. It refers to the moment when the penis of one partner penetrates the other partner fully, until the base of the penis touches the receiver's pelvic bone which is also known as 'bottoming out.' It is important to engage in safe and consensual sexual activities always.