Michelle, on her knees, throws her head back, a moan escaping her lips as her stepbrother's thick cock fills her mouth. She can feel his hands tangling in her hair, guiding her rhythm. The car's backseat is a tight fit, their bodies rubbing against each other, the heat of their lust intensifying. She can taste the salty pre-cum on her tongue, and it fuels her desire. She wants more, she wants all of him, but the sound of their parents' voices outside the car brings them both back to reality, forcing them to quickly straighten up and pretend nothing happened.