The Doctor (Ten) and Rose (David Tennant and Billie Piper), Doctor Who
While I maintain that Christopher Eccleston's Doctor (Nine) had greater chemistry with Billie Piper's Rose than did Tennant and Piper, that is most likely because I felt they had a sexier, more heated chemistry which I personally prefer. On the other hand, Tennant's Ten and Piper DID have fantastic chemistry, however, in my opinion, it was not of the sexy, heated kind. Rather it was of the fluffy, cute-as-a-button type. And they were. Absolutely. The cutest, squeeiest, most adorably fluffy couple ever.
Those grins, the way they're holding on to each other, the way they're looking at each other as if the other personally made the world subsist of sunshine, rainbows, puppies and kittens is pretty emblematic of their entire relationship. Sure there was angst a'plenty (see "Doomsday"), but when they weren't being torn apart (see, oh heck, too many episodes to list), they were the cutest, fluffiest, most adorable pair EVER! So freaking cute! :D
Past Days ...
Day 01 - What is your current favorite ship?
Day 02 - What was your very first ship?
Day 03 - A pairing that needs to happen now?
Day 04 - The pairing with the most chemistry?
Day 05 - The pairing with the least chemistry?
Day 06 - Best kiss?
Day 07 - The most heartbreaking scene?
Day 08 - The pairing with the most baggage?
Day 09 - The most believable relationship?
Day 10 - The least believable relationship?
Day 11 - Your dream pairing?
Day 12 - Who had the best wedding?
Day 13 - Your favorite television pairing?
Day 14 - What is your favorite book pairing?
Day 15 - What is your favorite real life pairing?
Day 16 - What is the absolute worst pairing?
Day 17 - A pairing you thought would never work out, but did?