Jeff and Sarah were loving their new maternal role over Jeff's sister, Natalie. As they kissed, Jeff thought about how he could make Natalie even more dependent on them. Jeff had an idea, patting Natalie's head as he removed his teat from her mouth.
Jeff went to the Chronivac, opening Natalie's entry. First, he made her completely incontinent, forcing her to wear diapers. He made it so she could only drink breast milk. He also shrank her breasts to a measly A-cup, and shrunk her body to a height of four feet, matching her new baby-like role. Finally, he made Natalie call him and Sarah 'mommy', and made her think all the changes were normal. Before he hit apply, he changed his and Sarah's minds, giving them new maternal instincts.
He went back to Natalie's room, which had changed drastically. Instead of her double bed, there was now a large crib, which Natalie was laying in. She was wearing a white diaper. She turned to see him walk in.
'I'm hungry, mommy,' she said to Jeff. He took off his bra and held her head to his breast as she drank his milk. As she filled her belly with her 'mommy's' sweet milk, her body relaxed, and she moaned as she wet her diaper.
'Can you change me?' She asked. Jeff took off her diaper; there was a yellow stain on the front. He wiped her vagina, making her moan slightly. As he changed her, he looked at her now shrunken breasts. They made her look more cute, he thought; his new maternal instincts affecting his brain.
He finished changing her diaper and placed a pacifier in her mouth, which she sucked on happily as he left the room.
'How was it,' Sarah asked, rubbing her pussy.
'It was great, she looked so cute,' he answered, kissing his girlfriend. They began to make out passionately, rushing to the bed.
Jeff took out his cock and rubbed it against Sarah's dripping pussy, making her moan. He climbed on top of her, their huge tits jiggling together as Jeff thrust into her. Jeff's new breasts shook on his chest, as he decided he never wanted to have a flat chest again. Sarah latched on to one of his nipples, making him moan as he filled her mouth with milk. She drank from his bosom while getting fucked.
They both climaxed in unison, Jeff filled her pussy with his warm cum as they both shook with pleasure.
'Us three could make a nice family,' Jeff said, moaning. Sarah kissed him as cum leaked from her pussy.