Spend your night as her cock warmer.

"Jim you can go now." Said Emma with a wicked smile. "I have something much more fun to do now."

Jim rose shakily to his feet, his large breasts slowly leaking spurts of milk. Suddenly he coughed and you saw semen was rising from his stomach. Quickly you ran over and gave him a big kiss. You were sure that your sister would punish Jim if he coughed up her cum and besides, the kiss meant you got to swallow down the cum that was coughed up. You may not like your sister but you can't deny her cum is delicious.

Once Jim had regained control of his breathing and you had swallowed a fair deal of cum you broke the kiss. You then turned and kneeled before your sister. It still wasn't you favorite action but she did hold your fate in her hands and besides, kneeling before a cock like hers made you wet on its own. Your sister slowly contemplated you before placing her foot on your caged little dicklette.

"Now I need to think of a good punishment for you." Her foot slowly massaged your crotch causing you to shudder as orgasm after orgasm began to overtake you. "I could just go with the usual, make you wash the house nude with one of your biggwr dildos up your ass and 'bad sissy' written on your little titties." She began to press harder with her foot and you fell back unable to maintain muscle rigidity in the face of her relentless rubbing.

"Thing is I did that last time and I don't feel like repeating myself." Your cock was now painfully hard and throbing straining against its cage. "I could give your tits a go in the punishment cage, see if we can stretch them enough that you have real clevage but I don't want you to get thinking you could ever equal even the whimpiest of girls." You continued to leak although now it was almost painful.

"I know!" Said Emma standing up and in the process completely crushing your dicklette underfoot causing you to almost pass out with the mixture of pleasure and pain. "That blowjob you gave mom was really fucking hot, you're going to give me one until I wake up tomorrow morning starting now."

"B-b-but sis," you pleaded. "Even my sissy throat can't take that much oxygen deprivation and I'm too slow to move with you without slowing you down."

Your sister glared at you, your points were in fact valid so she couldn't exactly punish you for them but still, you had talked back to her. She reached for the pendant around her neck and suddenly you were staring at her in confusion, wondering what you had been worried about. Obviously sissies like you could breath through your asshole if your throat was stuffed and if both were filled your belly button worked just as well (which would probably come in handy since your mother didn't approve of you sleeping unless you had a Dildo that was an exact replica of her glorious cock up your ass.)

As for moving with your sister you again wondered where such a concern had come from. As you slid yourself onto her cock she properly leashed your head to her back and your body to her cock as you retracted your limbs to lower your weight and let Emma carry you around as a portable cock sleeve. You hoped when she was done you would at least be allowed to regrow your legs but glancing at your father whose arms had been retracted for the past 7 months you somewhat doubted you would recive full regrowth privledges.

You sister smiled happily at her little cock sleeve as she went upstairs to get some food and the first of many loads of cum shot down your throat.