Cecilia: tied over a cauldron filled with foul liquid and fart potion and Cicilia forced to fart into the cauldron

Lavender: puts the liquid in the cauldron through the tube that is attached to Lavender's butthole mmph, continue to expel your flatulence, soon I will have the greatest power of flatulence, the windy kingdom will fall into my hands, I can feel the great liquid entering inside my butt hole