In Tokyo's Azabu-Juban, the crew hits the streets to pick up amateur girls, diving deep into their jobs, sexual preferences, and even gossip in this daring project! This time, they're testing the popular internet theory: "Big tits mean a dumb girl" — that well-endowed girls are easy to seduce. Enter Yuuko, a 20-year-old spotted eyeing lunch outside a pasta shop! Confirmed G-cup — she's in! Five street quiz questions follow, designed to spark surprisingly erotic associations. Despite their simplicity, shockingly, not a single one is answered perfectly — inching closer to proving the "big tits = dumb" myth. Moving to the studio, she sheds her coat, revealing a stunning G-cup that instantly grabs attention. As she shares stories about hanging out at her boyfriend's place and confesses her love for long cocks and big heads, her "dumb" status seems confirmed! Laughter erupts when she's shown a cock through pants, and reenacting a lazy day at home, she suddenly starts sucking the guy's fingers while watching TV — quickly escalating to full-on cock sucking! Her erotic switch is fully flipped! The excitement peaks with the "man's dream" pantyhose-ripping scene. Her panties come off, fingers dive in, producing juicy, wet sounds. She squirts, clearly loving every second. After a thorough cunnilingus cleanup, she returns the favor with her prized G-cups. Soft, perfectly shaped, with flawless areolas — her miraculous tits bring him to the brink during titty fuck. Then, doggystyle penetration — cock deep inside — as she moans, "So good ♪" with a filthy, seductive look. No matter the position, those soft, dominant G-cups make for absolutely incredible sex! The theory — "big tits mean dumb, and big-titted girls are surprisingly easy to seduce" — is proven true!