Nothing

Lucy only stared at Juvia/Erza's panties in amazement. Despite the megaton fart she just unleashed, her panties were incredibly clean. However, she struggled with snapping them back, briefly captivated by the perfection of her behind. Lucy quickly stopped and snapped them back with a bright blush on her cheeks.

"Well, they're clean!" Lucy said frantically.

"Why'd you look at it for so long?" Juvia/Erza asked.

"Uh...no reason!" Lucy replied.

What now?