“Dana Vespoli’s Real Sex Diary 4” is both a collection of candid, reality-porn dates and a look into the director’s erotic philosophies — the action is motivated purely by her libidinous cravings and sense of fun as she feels free to work with new people and explore sexuality without putting on an act. All of the couplings include backstage conversation and porn biz war stories. In unglamorous home video, Dana and award-winning girl-girl performer Shyla Jennings kiss and make love with full-body snuggling. Girly, all-natural Shyla grinds orgasmically into Dana’s face. Shapely blonde Ashley Fires and Dana make out and compare vaginal anatomy. Ashley spreads, sniffs and tongues Dana’s deep crack and sits on her face. Dana teaches Ashley to love butt crack biting! Casual hipster Richie Calhoun and Dana whisper little requests and compliments as they fuck, like real people. After cumming on her chest, he licks up semen splashes and they share a snowball kiss! Dana masturbates as muscular, bearded Danny Mountain takes her in many positions. She sucks dick pussy-to-mouth, and she’s quite when she tastes his cum candid, belching out loud! Wrapped around the scenes is footage of the athletic, sweaty Dana training in a boxing gym, her metaphor for the struggles everyone faces in relationships, business and life.