Pretty much just what the title implies. Eight porn stars are interviewed about how and why they got into the biz and other things they may have on their minds, and then we watch them fuck. This is one of those movies that makes folks who are strangers to porn feel “surprised” by how bright and articulate and funny many performers are.

First up are Olive Glass and Michael Vegas. Olive says that hearing people say “you’re worth less than nothing if you’re a sex worker” made her wonder, “What happens if I press that button?” Vegas used to “get into trouble for watching porn.” They seem to be having a great time making love to each other.

Lily LaBeau, who talks about being a sex worker, gets to work with Prince Yahshua, and not for the first time. Prince feels that porn brings a “higher level of intensity and passion and heat” to lovemaking. On Lily: “There is nothing I need to tell her. ... We know all the right spots,” adding, “I’m one of the few brothers who love sucking pussy.”

Ana Foxxx says, “I like sex at home a lot better than porn ... I never do reverse cowgirl at home.” Her partner here, Donnie Rock, talks about the dos and don’ts on porn sets: “Pay attention is the biggest thing.” He and Ana have a long discussion about what kinds of sex acts do and don’t turn them on. She is beautifully shot.

Chanel Preston holds forth on the nature of pornography and talks amusingly about sexual politics. She and James Deen, who’ve done many scenes together, reunite for an athletic bout of sex that begins provocatively with Deen wearing a full-face mask. He reminds us that “adult films are not education, they’re entertainment.”

Riley Nixon and Small Hands also talk but, sadly, do not fuck. Both say interesting things about their repressive religious-oriented upbringings (hers Catholic, his Baptist).