Take a big, determined hero who has an easygoing character, a dirty mind and a loneliness problem. Then take a petite heroine who is crushed by remorse and grief and she can't let herself go with her man despite the attraction. You have a typical situation for romance.If you keep the characters' look but reverse their roles, you'll have Heart Signs and something quite strange and original. It worked for me. What didn't work are the dirty talks, IMO, they are cheesy and so not hot.