Weirdly excited

"Holy shit that was incredible." she says grinning from ear to ear "I was a doll, I couldn't move or speak or even blink but I could feel everything! And it was like my nerves were all turned up to the max. I practically came when you touched me. If I could have I'd have been begging you to fill my pussy"

You blush hearing your sister talk like that, she's never been shy but she's not usually so direct.

"Oh, okay..." you manage after an uncomfortable pause "I'm glad you are alright..."

"Oh, I'm more than alright" she interrupts you "I want to go again."

"What? No!" you refuse "Listen, we don't know anything about this thing. It could be dangerous..."

"Uhg, don't be such a pussy." she responds "Look at me, I'm fine. I can't let an opportunity like this go just because my big brother is too chicken. I want you to zap me again and this time I want to be used."