Group sex

Various assemblages of people may participate in group sex. While group sex does not imply that all participants must be in sexual contact with all others simultaneously, some positions are only possible with three or more people.

As with the positions listed above, more group sex positions become practical if erotic furniture is used.

With three participants

When three people have sex with each other, it is called a threesome. Possible ways of having all partners in sexual contact with each other include:

• One person performs oral sex on either of the other two partners while they engage in anal or vaginal intercourse.
  
  
• A man has vaginal or anal sex with one partner, while himself being anally penetrated by another (possibly with a strap-on dildo).
  
  
• Three partners lie or stand in parallel, with one between the other two. Sometimes called a sandwich. This term may specifically refer to the double penetration of a woman, with one penis in her anus, and the other in her vagina.
  
  
• A participant has vaginal or anal sex with one partner, and both give oral sex to a third.
  
  
• Three people perform oral sex in a triangular configuration, commonly called a "daisy chain".

Multiple penetration

Multiple penetration refers to one person being sexually penetrated several times simultaneously. It generally involves between three and five participants. Penetration may be accomplished by fingers, toes, sex toys, or penises. These positions are popular in pornography, but it is difficult to say whether they enjoy any significant popularity outside of it.

If one person is penetrated by two objects, it is generically called double penetration (sometimes abbreviated dp). Given the vagina, anus and mouth, there are six ways in which this can be done. These include:

• Simultaneous penetration of the anus by two penises or other objects. This is commonly called double anal or double stuffing.
  
  
• Simultaneous penetration of the vagina by two penises or other objects. This is commonly called double vaginal or double stuffing.
  
  
• Simultaneous penetration of the vagina and anus. If this is done using penises and/or strap-on dildos, this is sometimes called the sandwich or BigMac. The shocker accomplishes this using several fingers of one hand.
  
• Simultaneous penetration of the mouth and either the vagina or anus. If the penetrating objects are penises, this is sometimes called the spit roast. The character Alyssa Jones in Chasing Amy acquired the nickname "finger cuffs" after participating in this act.

If one person is penetrated by three objects, it is generically called triple penetration. Possibilities include:

• Two penises penetrating the vagina and one in the anus or vice versa. While possible, this position is very difficult.
  
  
• Three penises penetrating either the vagina or the anus simultaneously.
  
  
• One penis in the anus, one in the vagina, and one in the mouth simultaneously.

These variations of multiple penetration are commonly seen in pornography aimed at straight men. Some of these positions put two men in intimate contact with each other, either directly or indirectly.

Penetration by larger numbers of objects is rarer and generally not named, with one exception, which is likely physically impossible:

• Double vaginal, double anal penetration (DVDA): simultaneous penetration of the vagina and anus of a single woman by two penises each. The term gained popularity after its inclusion in the movie Orgazmo by South Park co-creator Trey Parker, and is also the name of Parker's and Matt Stone's band.

These positions can be expanded to accommodate any number of participants.

• A group of males masturbating is called a circle jerk.
  
  
• A group of males masturbating and ejaculating on one person's face (usually a woman's), is known as bukkake in Japanese pornography. The depiction of which may be partially illegal in the U.S.
  
  
• A group of men, women, or both, each performing oral sex on the next, is called a daisy chain.