Two bikini-clad gyaru girls met at a summer beach. Using a simple survey as a pickup pretext, they're quickly lured into a hotel room. Both are young aspiring full-time apparel workers and appear close, but secretly harbor rivalry toward each other. Exploiting this delicate dynamic, once one becomes receptive, the other also gives in to seduction. Their swimsuit-clad bodies stuffing a huge cock into their cheeks heighten the eroticism, and despite shyness, their mutual awareness pushes the action into escalating intensity. It's their first threesome, so beachside shame is easily discarded as their relationship grows even deeper.