Grab her cock

Slowly and unsurely you move your hand to her cock. It’s twitching like crazy, and leaking a constant stream of precum.

She moans deeply as you grasp it, and it pulses hard in your hand. You sit there like that for a few moments until she begins to stroke your cock slowly.

Following your big sisters lead your hand begins to move, but there is too much friction. Taking your hand off for a moment she whimpers slightly, but when you spit in your palm she begins to hump the air in anticipation. Looking at your sisters face you’ve never seen it quite like this.