Mary had told John that she would make them some drinks which she pour the vials in and then she takes them and hands John his drink and she then says that she hopes it to his liking and then they both drink the drink and they both start to transform.
John had all of a sudden double over in pain and he has pass out from the pain. While he is knocked out his body has been transforming. His penis had been replaced with a vagina but what Mary didn't realize is that the vial she had picked was one that a woman that wants to get pregnant uses because it increases the fertility, his pecs had become breast. His measurements are 40 -26 -32.
Mary had become a man with a 8 in penis and she now has big muscles and that she notices John has become a very beautiful and she has become horny.
John has finally come to and asked what happened when he noticed that and it was after saying that that his voice sounded weird. That is when Mary tells John that they have swapped sex and that they aren't able to change back for 1 month.
She added that she knew that he wouldn't have been willing to go through with this. John had found himself being turned on by Mary's form.
John had told Mary that he wants to have her take him out for diner and then we will see where it goes from there.
Somehow when they go to change there clothing Mary pulls out John's wallet while he takes a shower. Mary then noticed that it had seemed to have changed. Because when she opened it she sees that it has the name as Joan but it has most of the other info the same except it says female for the sex. Mary then goes to get her purse and when she looks at her wallet in the purse. Mary finds that it has her as male and that the name is Mark.
Mary sets out a outfit for John and then goes and and goes into the other room and takes a shower.
John and Mary had been engaged