Edit: updated with the secon version of Rallo-Roberta and minor tweaks to steve-hayley
Thanks to Stewie latest invention and a conversation that escalated quickly, the boys decide to organize a competition: who'd look best with their sister's body. They decided the beauty contest in Quahog the following week would be the judge, with 50 dollars each at stake.
I'll let you decide if stewie's invention is a simple HS remote, if it copies and pastes body parts or simply merges people and the sisters are actually still in control of their body parts.

I also wanted to add a background but the feet position seem incompatible with a flat terrain. Sorry