An orgy is a type of group sex in which people engage in in consensual, unrestrained sex with one another.
Orgies are not always well-distinguished from other types of group sex, but some common characteristics may include:
- They feature five or more participants (because three participants would be a threesome and four a foursome).
- Participants all engage in sexual activity in the same room, rather than splitting off into couples, threesomes or foursomes.
- There is some level of contact between most of the people involved.
- Participants are more likely to be unknown or unconnected to each other (unlike swingers, who tend to have group sex within a community that includes many people they know).