Carlos, the horny Spaniard, has a secret game he's been dying to play with his sister María. He's been catching glimpses of her round ass and perky tits, and his cock can't take it anymore. He spreads his legs, letting his massive, veiny cock spring free. María, caught off guard, hesitates but can't resist its allure. She tentatively touches it, feeling its heat and throb. Carlos coaches her, showing her how to stroke it, how to make him groan. María's pussy responds, soaking her panties. Carlos reaches out, pushing her onto the bed, ready to claim his prize, but María stops him, "No, Carlos. Not today. Today, we just learn."