Clad in their Sunday best, Michelle and her brother Jack sit rigidly in church, the sermon washing over them as their legs brush together beneath the pew. Michelle's heart races, her panties growing damp as she imagines Jack's hands on her, not in chaste brotherly affection, but in the filthy, forbidden ways she's been dreaming of. As they kneel to pray, Jack's hand finds her thigh, and she gasps, the weight of their sin pressing down on them like a physical force, yet unable to resist the pull of their taboo temptation.