Nii-sama's punishment

"Nii-sama, hold still!" You look at your little sister Sakura, who is nude and is sitting on your bare stomach with a stick in her hand. "If you don't, I'll have to punish you!" She swatted your side with the stick, making you wince.

"Sakura... please. I think my arms and hands are going numb..." You groan as you wonder how you let her get out into this situation. One minute, you agreed to help her, and the next, you were lying in bed, nude and tied up in ropes.

"Hush, Nii-sama!" She brought the stick down on your chest, a cry of pain escaping your lips. "I need absolute silence for this!" With that, she turned around and began to inspect your penis by fondling and stroking it. "It looks healthy enough... I'm going to enjoy this." She let out a giggle as she now began to placed her feet onto your cock and rubbed it.

"Uhhh...!" You let out a quiet moan as Sakura gave you a footjob you had never believed would even happen. "Gods...!"

"Fufufu... I'm going to make you cum, Nii-sama..." Sakura panted as she kept jerking off her brother in a playful manner. "I can almost feel it!" She leaned back and gripped your hips, her feet pressing against your erect cock.

"I... I can't take any more! I'm going to cum!" You cry out as Sakura removes her feet from your manhood, letting out a giggle as your hot white seed bursts out and splatters on the sheets.

"Nii-sama, you're hopeless." Sakura's chiding tone has a hint of playfulness as she looks at you with a predatory smile. "But this is only the beginning. I'm going to make you cum more and more. You better be ready. Fufufu~"