You've been out for a few hours. You left me with instructions - three bottles of water should be gone when you get back. No release. No cum. I can play with my pussy if I want. You know that in a few hours, my milk will have built up to unbearable pressure, and the thought makes you hard as you go about your errands.
You come back and the lights are low. I don't say hello when you come in, and you quickly see why - I'm curled up and napping, naked. The last half-empty bottle sits where it fell out of my mouth. You can see that my breasts are full, firm, starting to leak. You put your bags down and slip your shoes off, slipping into bed next to me. I wake slightly, smile at you, close my eyes again. You pick up the bottle, slide your arm under my neck and nudge my lips with the nipple. I suck, barely awake. You watch me take it in, knowing how full I must be, but I don't fight it. I swallow again and again.
While I drink, you run your hand lightly over my belly, fingers skimming down to my bladder, pressing it gently to make me moan against the nipple.