Pete, her step-father, is stretched out on one of the sun loungers placed beside the pool. At first she thinks he's asleep and is about to call out his name when she sees his hand move. For some reason, unknown to herself, she pauses and watches quietly . She watches as he slides his hand down over his muscular chest and under the waist band of his bathing shorts. She can see that his eyes are shut and she watches as his hand starts to move slowly, up and down, under his shorts. Her eyes grow wider as she watched his cock start to swell, straining against the flimsy material of his bathers. She can see that his fingers are wrapped round his cock under the cloth of his shorts and it's obvious to Samantha what the affect of this is having on him. She can hear the soft moans that slide from his lips as his fingers tightened on his cock, his back arching slightly as his body responds. She finds herself squeezing her thighs together tightly as she watches, feeling her own body respond. She can feel the wetness as her juices coat her lips, soaking into her skimpy shorts. Her nipples tighten, rubbing against her tight t-shirt, as she continues to watch. As her step-father's hand slides up and down the length of his cock, his fist pushes against his bathers, pushing them down slightly until Samantha can see the tip of his cock peeking from under the colourful material.