Dress her again and resume time

I make Billie stand up, taking her panties from her face, "If you dont mind I want to keep this" so I saved them in my pocket, I lift her arms to put her shirt back, then starting to put her shorts, "I enjoyed you a lot Billie, youre definitely the hottest female I have ever used" I said before placing her as she was before, placing the microphone on her hand, giving her one last kiss, and then resuming time once I was with the crowd again

Billie gives a step and almost lose balance, she giggles a bit, but she immediately noticed something's wrong, she looks down, her face a bit worried, her crotch was feeling directly the texture of her shorts, almost like if she wasnt wearing underwear, her voice was trembling a bit while she was singing, definitely something weird was happening, first her bra gets missing, now her panties, and she was feeling how her pussy was really warm, with something dripping out of her

"What the fuck is happening?" she was thinking while finishing that song, her body was shaking because how nervous she was, feeling really scared by now, that song felt like an eternity for her, because she really wanted to end the show by now, she was just wishing to get to backstage and hide herself from everyone's eyes

I had the biggest smile I ever had in my life, I just filled Billie Eilish's pussy with my cum, she was shaking a leg while singing that last song, "Hehe poor Billie, she has no idea one fan already enjoyed her perfect body" I was thinking, with her bra still in my hands, and her panties on my pocket, knowing I will save them forever as a trophy

Finally that song ends, Billie was so nervous so she didnt even say anything, she just leans to the crowd, completely unaware that she was letting the fans in the first row have a quick look on her naked tits through the neck of her shirt, she starts waving her hand to the crowd while walking to the back of the stage, rushily getting inside the backstage, her heart beating really fast because how scared she was, I was just fantasizing about how would she react once she gets to see that she wasnt wearing any underwear anymore, or what kind of thing she would think just trying to find an explanation