Whodunnit/Home/Willy/RPS/Round 4 Win, 1-1
"Rock!"
Yay! You won again! Now Willy will only have one piece of clothing, just like you.
His underwear is still safely underneath his shorts, so the only option you have is his pants. You kneel down in front of him, making sure your naked crotch is hidden from view, and then reach your hands to Willy's zipper. 'Zzzzz' As his zipper goes down, you can see the first traces of Willy's underpants through the gap. As soon as his zipper is all the way down, your reach for his button and unfasten it.
Willy's shorts drop like a lead weight, exposing his underwear for all to see. Hmm, there seems to be a slight bulge there, right in front of you. You look up at your cousin's face. Good! He's finally getting a little embarrassed. It's about time he feels the same shame he's given you.
After you put Willy's shorts by his shirt on the bed, you return to your position, ready to start round five. Whoever loses this round will be completely naked. No matter what, you've got to win this!
"Rock, Paper, Scissors!"