In the sizzling heat of Rio, a married Brazilian woman, her dark skin glistening with sweat, finds herself alone with her husband's best friend. She's a 'puta casada,' a married slut, and she knows exactly what she wants. With a mischievous grin, she bends over, revealing her tight, unmarked ass to the eager man behind her. He takes his time, teasing her puckered hole with his thick cock, watching her squirm in anticipation. She's 'corno bi,' a bi cuckold, and she loves every minute of it.