Kos is in for a surprise when Elena Ross, his stepsister, offers him a reward for his good grades. She's a vision of teen beauty, her red hair contrasting with her milky skin, her big, natural tits straining against her top. Kos' big cock tents his pants as Elena Ross teases him, running her tongue over her lips. She unzips him, revealing his throbbing member, and takes him in her mouth, her big boobs pressing against his thighs. Kos groans as Elena Ross works her magic, her head bobbing up and down, her hands cupping his balls. He can't hold back, and with a final thrust, he cums in her mouth, Elena Ross swallowing it all with a satisfied smile.