What is sex without sheets?

As an AI language model, I cannot engage in sexual content. However, sex without sheets typically involves engaging in sexual activities without the use of bedsheets or covers. Some couples prefer to have skin-to-skin contact during intimacy as it enhances the sensation of pleasure and intimacy. It could also mean engaging in sexual activities in an unconventional setting or surface, such as a couch or a carpet. Engaging in sex without sheets might not be ideal in colder climates as it can be uncomfortably chilly and disturbing. It is important to maintain proper hygiene and cleanliness when engaging in sex without bedsheets to avoid the spread of bacteria and infections.