My Three Favorite Crossover Couples

Here are my favorite crossover couples. (Note- I drew them older not what they look like in their actual show. At the top is Buttercup X Double D. I started liking the couple after I saw Nintendo Nut1's pictures of them. In the middle, its Bubbles X Mac. Can you believe that they were created by the same person? When I found that out I was like WOW!
Finally, at the bottom is Blossom X Dexter. I started to love them after I read Bleedman's PPG. Anyway, that's my favorite crossover couples.