Penny

You awake slowly, and then all at once, when you realize you're strapped down. The bright neons of the hospital-like room are blinding and take several seconds to get accustomed to. Above you, there's a... bathtub? You panic, at first, but then you realize it's not going to fall... It's secured in place. A cheery nurse appears at your side holding... a hose. Her nametag reads Penny. She's very voluptuous. A bit on the chubby side, as shown by the straining nurse dress she's wearing - Wait, you recognize her! She's the nurse with the fat ass you met when you entered the sperm bank! You remember commenting on her ass - which looked massive in that short nurse skirt - and then you got assigned a room and then... Black. She's beaming at you, but nothing in this situation seems like it's worth celebrating. She brings the tube towards your mouth... And you realize that you can't fully close it. There's something keeping your mouth at least a bit open. Oh, hello there sleepyhead! Sorry I spiked your water, I needed you asleep for a while to set all of this up. she says, motioning towards your restrains. Now, it's not nice to call people's ass fat, is it? Hehe... You were mean to me, and now you're about to have an all-you-can-eat sperm buffet... How'd that happen? She sticks an end of the large transparent tube to your face. You hear a click as it locks to whatever is keeping your mouth open. Then she affixes the remaining end of the tube... To the bathtub's drain. Lucky you, we just got a BIG batch in from some of our 'partners'... Barrels full of the stuff! You'll have plenty of energy for your whooooole day after you glug it all down! Why don't you have a taste? She gives a gentle tug to a chain. It's probably connected to the bathtub's drain because it opens... And a white, thick-and-runny liquid drools into the tube. Only a small sample of the jizz tub begins to flow down the tube... And importantly, towards your mouth.