Four songs on the album – "Wasted", "Don't Care", "Behind the Door" and "Red Tape" – were originally co-written and performed by vocalist Keith Morris with his previous band Black Flag.

The image used for the cover art of Group Sex is a stylized version by graphic designer Diane Zincavage[5] of a photo taken by punk photographer Ed Colver after a Circle Jerks/Adolescents performance at the Marina del Rey Skatepark.

[6] The photo features Casey Royer of the Adolescents; Circle Jerks bassist Roger Rogerson and his girlfriend at the time, Laura Bennett; and various other people of the California hardcore punk scene,[6] two of them wearing Public Image Ltd shirts.

[7] Group Sex was met with generally positive reviews and ratings, and the album has been called a classic of the hardcore punk genre.

[8] Robert Christgau gave it a "B+" (one of his highest ratings at the time) saying, "Like the Angry Samoans, although not as clearly or catchily, these slammers double-time metal riffs behind the rants, yielding such indelible plaints as "Deny Everything" ("I'm being framed"), "Paid Vacation" ("It's Afghanistan!

The tour was scheduled to begin in 2020 and would feature the line-up of Keith Morris, Greg Hetson, Zander Schloss along with Queens of the Stone Age drummer Joey Castillo.