Is “training” instruction and discipline? Does “pulling a train” describe constant sexual locomotion with multiple riders? Yes and yes in director Aiden Riley’s “Girl Train 5,” wherein young, natural beauties get schooled and railed in lesbian anal threesomes. The movie arrives September 21 on VOD and as a marathon, two-disc DVD from Evil Angel. It can be previewed now in a trailer at EvilAngelVideo.com.

“Girl Train 5” delivers Riley’s trademarks — graphic girl-on-girl kink with the freeform, behind-the-scenes fun and revealing interviews that let fans know what porn girls are really like. In fact, the director engineered scene introductions to further personalize the new movie’s trio of sapphic epics: “Sometimes I’m experimental, so I gave the girls cameras and let them shoot themselves, to see what they would want to show,” explains Riley. “Everybody loves selfies.” Individual, selfie-style tease is the express route to intimate, perverse ass play, and each menage-a-trois goes off the tracks with strap-on dildos, double dongs and vibrating wands.

According to Evil Angel Domestic Sales Manager Justin Rich, “Girl-girl content remains strong in the porn market, and fans know they can count on Aiden for lesbian action that’s exciting because it’s so genuine. In ‘Girl Train 5,’ not just the bodies are natural — Aiden casts personable girls capable of opening up, being real and sharing themselves.” Adds Rich, “Of course, Abella Danger drives the train, so to speak, with the big, um, personality she shows when she takes over the office on the live Periscope broadcasts fans can see on Evil Angel’s YouTube page.”

Black-haired stunner Aria Alexander, big-assed blonde AJ Applegate and the irrepressible, round-rumped Ms. Danger enjoy spitting, choking and making each other squirt in a ride freighted with those luxurious cabooses. Riley reveals how the scene was nearly derailed: “Abella was trying to squirt and ended up farting, loud. She demanded that we edit it out of the movie … but if you look in the BTS, you’ll see and hear it.” About Applegate, the smitten Riley says, “I love her. I would like to go to prom with her. In fact, I’m asking her out on a date through this release.”

The first passengers on board “Girl Train 5” are brunette beauty Aidra Fox, luscious American Latina Vicki Chase and blonde cutie Jenna Ashley, sharing a session of kissing and anal delights. “Aidra was reserved until we started talking, but then she cut loose,” recalls Riley. “I love Vicki. She’s really nice. She’s really sexy.”

Lithe Lea Lexis, exotic Yhivi and sweet Japanese doll Marica Hase feverishly fuck and get off together. Notes Riley, “Lea performs in the way I like to see. She’s willing to go above and beyond what would normally be required, and she adds her own creativity to it. She comes up with ideas instead of just taking direction.”

For fans of the most intimate and kinky all-female threesomes, “Girl Train 5” is the light at the end of the tunnel. Watch out!