Which episode of Boy Meets World is this?

I don't remember much so this may not be a big help. It was in one of the later seasons though, because Angela was in it. I remember Shawn and Topanga are together and Cory and Angela are together. It may have been a prank but I'm really unsure. I'm sorry, I know this isn't a big help but if you do know, could you let me know? Thank you so much!