21. Along with group masturbation, often to pornographic videos, group sex also may take place. 22. Other groups have criticized the book for promoting group sex between a man and his wives. 23. A topless dancer, Ms . Smith described using drugs and participating in group sex with Irvin. 24. The book's piece de resistance is an illustration of little paper people having group sex . 25. For Marie, this is almost like group sex -- another step in her sick journey. 26. In a 1977 interview with Oui magazine, Schwarzenegger recalled engaging in group sex at a gym. 27. They can be used by someone on their own, with partnered sex, or group sex . 28. The film gained her a 2008 AVN Award for " Best Group Sex Scene Film ". 29. She was jointly nominated for Best All-Girl Group Sex Scene at the 2015 AVN Awards. 30. Now I had to choose between categories : lesbian sex, group sex ; you get the idea.