A brown haired boy who develops a sexual relationship with Pico. He is younger and less sexually experienced than Pico. He often plays outdoors in the nude and secretly watches his older sister masturbate. In most cases, Chico is the seme, despite his age, though his relationship with Pico is somewhat reversible. He lives with his sister in a large house in a secluded forest area.    (Source: Wikipedia)

The third installment of the Boku no Pico series, which takes sometime after the second OVA, Pico to Chico.<br><br>
Pico and Chico meet a mysterious young boy named CoCo, whom Pico at first believes is a girl. The three of them become friends, but soon CoCo believes he is becoming a strain on Pico and Chico's relationship and decides to distance himself from them. The three of them rekindle their friendship by the end of the OVA.

The crisp rays of summer sun find the effeminate Pico embroiled in yet another heated and lustful fling. While out biking, Pico meets and befriends Chico—a lively boy not much younger than him, but leagues behind in the affairs of the flesh. After the innocent Chico shows his sister in the midst of self-pleasure to Pico, Pico takes it upon himself to educate this confused youth.<br>
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(Source: MAL Rewrite)