You're stuffed, and aside from that you're much fatter now than you were when you met them. Your feeder wants you to top, but you can barely move... You look at them with pleading eyes and they sigh. If that's the case, they huff, rolling their eyes, you'll have to get yourself off. They won't do it for you.
Unless you eat another 500 calories for them. Your head is fuzzy with lust; you're practically dripping with need you're too weak to do anything about. Slowly you nod, resigned to your fate and their desire. They pounce on you, ready to go with a carton of heavy cream. It takes a while but you finally manage to drink 500 calories of it; your feeder watching as you burp and whine, feeling so tight you're sure you'll burst... but they toss the carton aside and sit back on their heals, chin in their hand: you don't look very full to them. 500 wasn't enough, and using heavy cream? Liquid calories are basically cheating. You'll need to find the room for another 500 calories on top of all that if you want them to get you off.
By the time they're satisfied, you really can't move. You're so very obedient. They kiss you, slapping your belly a few times to get a rise out of you. You still don't look that full to them, but you're so cute, and they love you so much... they'll go ahead and get you off, just for being so well-behaved. And sexy, they add with a nip at your double chin. You sigh in anticipation of the relief and pleasure you're too fat, heavy, and stuffed to participate in as anything more than a passenger. You're helpless as they begin feeling you up... it's all you can do to lie there and let them do whatever they want to you.