Costumes.

Jason knew there was something up with the strange looking costume shop in the mall his girlfriend took him to.

As Jason stood in the fitting room waiting for his girlfriend to hand him a costume he notice his body starting to change his ass and hips started whitening & his waist started getting narrower.

His short cropped brown hair grew long luscious and silky & turned to a shade of blonde as his face lost the rough edges of masculinity that were replaced with the beautiful lines of femininity.

As he stood there looking in the mirror two good sized mounds exploded from his chest forming a pair of perfect breasts his penis was sucked back up inside of him and replaced with the sensitive folds of a vagina.

He quickly put on his clothes noticing how feminine his body was now from the ill fitting clothes.

Struggling to keep his trousers up he legged it from the shop.

He did not stop until he reached home.

A short time later his girlfriend returned home & was amazed at the transformation.

She blurted out that she did not think the transformation would turn him so feminine or beautiful.

Jason screamed at her in an unfamiliar high pitch voice you knew about this she smiled and said you are always making me where the ridiculous costumes at Halloween parties so I thought it was time you tried it yourself.

She told him the costume shop makes your body fit the costume I picked out for you handing him a bag telling him he better hurry as the party starts in an hour.

Shocked when he saw the nurses outfit which in his male form he would have found extremely sexy & slipped it on.
at the party and a few glasses of wine inside of him he stop being annoyed at his girlfriend for doing this & started relaxing and enjoying himself which continued when they got home.

And after a night of beautiful lesbian sex they decided to keep the costume for a couple more days as he was starting to enjoy himself and there was a lot more he wanted to explore.