Rip Van Whiskers
S2:E36
2006
IMDb
After Whiskers thinks he has been bitten by a frog that can make victims sleep for 50 years and decides to do a lot of things with Brandy including "kiss a preety girl". When Brandy finds out she's the girl to kiss, and the frog that Whiskers had been bitten by has to convince Whiskers the truth.