Jeff sat at the Chronivac, thinking of what to change next. He turned, watching Sarah finger her pussy as milk leaked from both her nipples. She squeezed her right breast, shooting a stream of milk across the room, as she moaned loudly. As Jeff watched his girlfriend milk herself, he began to think about having his own pair of breasts. The feeling of having large weights hang from your chest, the sensation of filling someone else's mouth with warm milk, must be second to none, he thought.
'How does it feel?' Jeff asked.
'It's... amazing,' Sarah replied, continuing to rub her clit.
Jeff had made up his mind. He wanted to have his own pair of lactating tits, just like his girlfriend's. He went back on the Chronivac, opening his entry. He turned around once more and sized up his girlfriend's breasts, guessing that they were around an E-cup. He moused over the 'mammaries' section of his profile, pressing the plus button until it went from 'flat' to 'E'. He turned the lactation slider to 50%, not wanting anything too crazy (yet). Jeff hit apply.
Feeling a tingle on his chest, he went over to his girlfriend, grabbing her hands and placing them on his flat chest. She looked at him, confused, until suddenly small lumps began to form underneath his nipples. She watched as her boyfriend's chest expanded, looking at him excitedly.
'Couldn't resist, huh?' She teased. Jeff couldn't answer, the pleasure of his new boobs being too much to bear. Milk started to leak from between Sarah's fingers as she began to massage his still expanding breasts.
Once they had reached around a D-cup, Sarah put her lips onto Jeff's nipple, tasting his milk. Jeff watched his girlfriend suckle his boobs, her gulping down his sweet milk. He let out a moan; the feeling of feeding someone with his breasts was even better than he imagined. He began to stroke his cock, massaging his other breast.
Sarah continued to suck her boyfriend's nipples, his milk was surprisingly sweet, she thought. She began to get horny too, rubbing her pussy. His breasts finally reached their final size, changing his centre of gravity as he was forced to readjust his balance. Sarah was latched to Jeff's breast and rubbing her pussy; Jeff continued to jerk his cock, until they both climaxed, Jeff cumming onto Sarah's tits.
Jeff loved his new boobs. He looked into the mirror, his huge breasts looking somewhat strange on his masculine frame. Looking at his beautiful new breasts made his cock hard again, as he began to think about wearing a bra.
'We need bras, don't we,' Jeff said to Sarah. She suggested looking through his mother's wardrobe; her breasts were about the same size as theirs.
Jeff raided his mother's underwear drawer, finding a black frilly bra. He struggled to clasp it around his chest, until Sarah came up behind him and did it for him, teasing him. He looked into the bathroom mirror, his mother's bra giving him a nice cleavage. He liked the look of himself wearing a bra.
'What now?' Asked Sarah.