Two TF comics that fulfilled the requirements of the romance.
First is a one shot Dragonair TF for Lunar Keys, it's very touching.
http://www.furaffinity.net/view/8411735/
The second one is a TF Sequence by Blyzzarde, where the guy doesn't get transformed but gets very lucky when his girlfriend does.
http://www.furaffinity.net/view/8497784/