Stepbrother's intimate encounter with stepsis in a taboo family situation

In a typical family setting, the stepbrothers find themselves in a heated rivalry for the affection of their stepsis. The younger brother, a skinny teen, has been longing for a close relationship with her, but his older stepbro has already established a deep connection with her. The tension between the brothers escalates, leading to a heated argument. Unbeknownst to them, their stepsis has been secretly recording their every word. She uses this power to her advantage, revealing the recording to the younger brother.With a mischievous smile, she offers him a chance to redeem himself. She tells him that if he can score a goal on his stepbro, he'll be able to have his way with her. The older brother, oblivious to the plot, agrees to the game. The younger brother scores the goal, and as per their agreement, he gets to have his way with his stepsis. The older brother, unaware of the secret deal, watches in shock as his younger brother takes his stepsis to the bedroom. The scene ends with the younger brother pleasuring his stepsis, leaving the older brother and the camera behind.