Free will only
As of 1 July 2018, Sweden has a new sexual offence law based on the presumption that sex is always voluntary. Sex must be an act of free will, otherwise it is illegal. The law clarifies that every human being has the right to decide over their body and their sexuality.
Sex that is an act of free will means that the persons involved have expressed consent to a sexual act using words or body language. So listen, ask, check, and respect. You must be sure about what others really want.
Violence or threats are not pre-requisites for a person to be convicted of, for example, rape. It is also not a requirement that someone took advantage of a person’s particularly vulnerable situation, for example that the person was under the influence of alcohol. If sex is not an act of free will, it is illegal.