"Saddle Up: Teenage Tutor's Naughty Teaching"

"Naive yet eager, the young sister finds herself in a compromising position as her brother 'teaches' her to ride. In his room, she straddles his lap, feeling his arousal grow beneath her. He guides her hips, simulating a ride, his hands wandering to her breasts. She gasps, her inexperience replaced by mounting pleasure. His cock tents his shorts, begging for release as she grinds against him, learning to take control."

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