Jon had always wanted to get with Karyn, but didn't want to mess things up between them, he decided this would be a good way to test how a relationship with her would go he downed the punch and immediately could feel a slight change in him.
moments later the changes were farther along Jon's button down shirt was pushed outward and then the top three buttons burst off, Jon quickly grabbed the shirt and covered himself up, his jeans had become skin tight as well
Karyn noticed how sexy the female Jon looked wide flaring hips, pressing tightly against her jeans, how she tied the nearly ruined shirt around her chest to cover her D cups, Karyn figured why not and kissed the (Jon)girl on the cheek
Jon looked back at her shocked, then realized thhey were both lesbians and now would be a good time to try to get Karyn as a one time thing, since he couldn't have her as a guy