The next day

Jake was still finding the previous evening amusing and kept laughing to himself thinking of Emily’s shocked face to him closing the door on her, he wondered if she would break to show him her breast and if she did how long will it take.

Around mid-afternoon found Jake in his lab when he heard a knocking on his door, God I’ve got to get use to all these interruption with this experiment going on next door, he laughed to himself trying not to feel annoyed at being interrupted. Looking though his peep hole he sore Carla there.

Opening the door to Carla who was wearing tight black Jeans and a white tank top showing her black bra underneath. She looked a little embarrassed to be there he felt. “Carla hello again, are you hear to demand things again?” he asked her

She seemed a little taken a back at being called out right away “err no more I wanted to apologies for last time I shouldn’t have just demanded that, you did clearly say it would cost me if I wanted more, and I think I should come clean also.” She says all this looking at the ground sheepishly.

“Ok then come on in, so what did you want to tell me?” he starts heading to his living room not waiting to see if she followed

She quickly followed him closing the door behind her then after taking a seat and taking a deep beath she says “well you kept asking me if it was making me feel things or taking an effect on me, well I have come to realise it has” she pauses seeming to try and come up with how to word how she was going to say the next part, Jake just kept silent giving her time. “I seem to crave it” she suddenly said quickly causing her to go bright red.

“What do you mean crave it? Is it like craving sugar? Or something else” he asks trying to sound concerned

“A little like that but the longer I go without it the more I want more till like last time I can’t think of anything else but to get more” still she could not meet his eyes saying this

“Odear that’s not good, and it’s not cheap to make either” he says still trying to sound concerned and lie at the same time.

“What? How much are we talking, I’m not making any money at the moment I’m in collage, I returned to live with mom to save on money” she sounded panicked,

“don’t you worry about that, you can pay me in other ways, I’m not too bad on money” he smiled at her

She looked relieved by this at first the very warily “Other way? What kind of things are you thinking?”

Jake chuckled “haha well you did call me perverted” he made a point to look her up and down.

“WHAT, god mom was right you are just a perv” she made to get up looking upset.

“Sit down already haha I was joking, it is up to you how you pay me, but as you see” he gestures around the room “I don’t need a cleaner or anything I am able to keep on top of that”.

She keeps standing but stops moving towards the exit looking much less hostile but thoughtful.

“Well, you don’t need to come up with it now why don’t you leave it here and you can come back to me once you have thought about it” Jake says standing

“I think your right I do need to think about this, thank you for being understanding, maybe mom was wrong about you being so much of a perv” Carla says looking at him as give him a little smile

“haha she has always called me that but she might not be to wrong, I’m a man after all” Jake says laughing and lead her to the door “I hope to see you soon, I will make a batch up ready for when you come back with how you will pay”

“Thank you again bye for now” she smiles again at him as she leaves, Jake watched her go staring at her shapely ass her tight jeans fitting almost like a second skin.

He went back to his lab to carry on were he left off wondering what she will come up with to pay him for his own cum. A couple of hours later he found himself disturbed from his work again, another knock at his door, God damn it, Carla has come up with a payment method already I did not expect it to be this quick he though as he walked to the door, looking though the peep hole. To his surprised it wasn’t Carla it was Emily. He opened the door she looked a mess, she was wearing her normal work outfit, tight knee length skirt, white blouse and a black Jacket over the top, her blouse thou was untucked from her skirt, she was slightly out of breath, hair was falling out of the bun she had put it up into for work, blond strands were falling over her face.

“Emily? Are you ok” he asks her.

She just pushes him back into his apartment and steeps in after him closing his door behind her. She glared at him pulling off her jacket dropping it on the floor, then started unbuttoning her blouse.

“ahh I see you chose to pay then” he grinded at her watching her taking off her blouse showing her white bra underneath

“shut up perv this is bad enough without your comments” she shot back reaching behind her to unclip her bra then stopped holding her bra over her breast. “You better get me the stuff, if you don’t I’m going to fucking kill you” she hisses at him.

“It will take me some time to make up a batch but sure once I see them I will go and make some” he grins at her “but you better not cover back up till I return”

She started removing her bra till she heard the last part, “WHAT, THAT WASN’T PART OF THE DEAL” she snaps at him

“That was yesterday’s deal, this is today’s deal” Jake says calmly just starting into her eyes smiling. He could see the internal fight in her face, part of her wanted to just tell him to fuck off and leave, but another just wanted his cum so much she was a thinking about doing it.

“Fine here” She dropped her arms pulling her bra down with it giving Jake the first sight of her C cup breasts. They were better than he imagined a nice tear shape not much sag in them and they looked nice and firm, her nipples were just the right size for them not to big, she must keep herself in shape as there did not look like there was much excess fat on her.

He stood there taking her in, for a good minute. Emily just stood their hands fixed to her sides her bra in one hand still, finally she had enough and snapped “god they are only breast your acting like you haven’t seen any when am I going to get the stuff then?”

“ok ok your right, you go and take a seat in there” he points towards his living room “I will be a little while, but you better not dress till after you have had it”

“YES OK” she snaps back at him bending over to pick up her blouse and jacket then headed to sit down “hurry up I don’t want to be stuck in this dump to long”

Jake left her and went to his lab, turning on some things just to make it sound like he was working, then grabbing a beaker sat down and just brought up an picture in his mind of what she just looked at.

After 20 minutes he came out his lab holding a beaker with his cum in, he walked into his living room pleased to see her sitting there still topless.

“Finally, what took you so long?” she snapped him “now give it here”, she stood up reaching for the beaker.

He kept it out of her reach “just wanted to point out before you take this, the payment will go up for each dose”.

“God damn you fine, but that if I need any more now give that here” he handed her the beaker smiling at her as he did. She snapped it out of his hand and quickly started drinking it.

She started moaning in joy as soon as it touched her lips, her waist started shaking causing her breast to shake nicely, a flush went up her body and her nipples became erect temping Jake to reach out and pinch them. It did not take her long to drink it all down and using her fingers get every last drop.

Emily put the beaker down once she was finished and then turned away from him putting her bra and blouse back on. Once dressed she just fasted him “I hope I never see you again you perv, this is the first and last time your going to see my breast, now get out my way” she pushes him aside and storms out the apartment, he hears the door slam behind her.

Jake just smiled to himself as he got his note book out, he was able to push her much more then he thought he would be able to, and with that rude exit he would make sure to make her pay more next time.