It was a Friday afternoon. Tom was on his way home from a hard day at work. Then as he walked by a store, he remembered that his girlfriend's birthday was coming up today. He sat down and started to think what should he get her. Then it hit him, she had an old swimsuit that was too small for her. So he decided to go get her a new swimsuit, but when he got to a swimsuit shop he saw the prices for the swimsuits. It was way out of his price range.
On his way home he saw an old lady walking across the street. The old lady was tall with large breasts. There was a car barreling down on her, so he ran out into the street and tackled the lady into the grass. She started to yell at him then she saw the car go racing by and realized why he did that. She was very grateful for what he had done and asked him to follow her home where she would give him a reward. He told her no, he didn't want a reward for what he had done. She wasn't going to take no for an answer. When they got back to her house, she asked him to come in and he did. They both sat down and started to talk. He told her about his girlfriend. Tom's girlfriend was very pretty, but she had a little boy's body, no breasts to speak of, and she was real short, but he cared for her a lot. He said that there was nothing that the old lady could do for him. So she looked at him for a minute and than she told him to wait while she got something from the other room. She came out with a box and told him to give the box to his girlfriend for her birthday. He took the box and started on his way home.
When he got home he started to think about how weird that lady was and look in the box. He saw a swimsuit. He took back what he said about her. Then he closed the box and put it under his bed and went to bed.
His girlfriend's birthday party came around. Tom decided to wait till after the party to give Megan her gift. A few hours had passed and the party was over. So he gave her the present, she opened it and saw the swimsuit. She loved it and told him that she was going to give him a personal show of her new swimsuit. Three minutes had gone by then she told him to come in. He came in and saw her in the swimsuit. She looked great, but there was a problem. The suit was a little too big. He didn't care, and the look on her face said it all. She went to Tom and gave him a big kiss and told him she loved the swimsuit. Then the suit gave off a weird glow and then stopped. All of a sudden Megan was getting taller she went from 5'2 to 6'1 within a few seconds. Her hips started getting wider until she had lost her little boy butt and got a nice perky ass. Then her breasts started to swell. They looked like balloons being blown up. Her breasts pushing forward, first they were the size of oranges, then they were the size of melons, then they stopped at about the size of basketballs. After her transformation, the top swimsuit looked like it was going to rip out by the new size of Megan's tits. She was getting very horny and wanted to fuck right now, who was he to stop her?
The sex was great then all of a sudden Tom realized he was growing too; he shot up 4 inches in height. His body was now very muscular. The last change was his penis it went from 6 to 10 inches. Now with their new bodies they fucked all night. They didn't know what to tell their parents about their new bodies...