Tell

"On second thought I don't think you're ready to see your sister's cock. Both because you've been bad, and for certain other reasons..." Carrie dictates ominously.

A look of disappointment flashes across your face for a moment, but that's enough for the new 'playful' side of Carrie to pick up on it immediately.
The Cheshire grin returning to her face she coos, "Oh don't be too sad, I'll arrange for you too see your sister's massive package soon enough, I just want to make sure you are absolutely ready for it. You need to want it even more baby, I promise it will be better that way."

You wince at this suggestion. Your confined little cocklet twitching and drooling at the mere mention of your sister's superior spear. But you have no words to offer in response. You are left speechless as your toned bombshell of a girlfriend relishes in the fact she has you by the balls.

Metaphor becomes fact as she grips your taut little grapes in her soft but firm grasp. Giving them a squeeze just hard enough to prepare you to wince, but she mercifully stops before even an ounce of pain flashes through them. Testing their taut blueballed frustration with her gentle embrace before giving them a few gentle strokes with her supple digits. All the while her thumb presses lightly on the little quarter sized shell that has so violently compacted your expanse. The pleasant warmth of her hand just barely penetrates the confines of your dicks painful prison, and offers you an ounce of pleasant mercy in your miserable state.

This act of play pity culminates with her giving your compacted cockhead a hard flick. You again grimace out of reflex but then realize how foolish the reaction was given the covered state of your little pecker.

She giggles to herself at your response and begins to leave the room. Turning her head she says, "Feel free to do anything you want while I go tend to your sister of course, the only rules I'll lay down for now is that you may not try to remove your cage and you can't leave this room. I'll be back in a few hours tops, I promise.
Haaave Fuuun!" She sings, and is out the door with a wave.