Sexual magick is a practice that is often associated with Thelemic Magick. It involves the use of sexual energy and orgasm as a means of achieving spiritual and magical goals. In Thelemic Magick, sexual magick is often referred to as the "Great Work" and is considered to be one of the most powerful forms of magick.

One of the key practices in sexual magick is the use of the "magical link," which is a connection between two individuals that is established through sexual energy. This link is often created through the use of specific rituals and practices, and is believed to be a powerful tool for achieving spiritual and magical goals.

Another important aspect of sexual magick in Thelemic Magick is the use of the "Scarlet Woman" and the "Magus." The Scarlet Woman is a symbol of the feminine principle in the universe, while the Magus represents the masculine principle. Together, they represent the union of opposites, which is a key concept in Thelemic Magick.

It is important to note that sexual magick can be a complex and potentially dangerous practice, and should only be attempted by those who have a thorough understanding of its principles and practices. It is also important to practice sexual magick with a consenting partner who is also knowledgeable about the practice.