I love you. Most ardently. Please do me the honor of accepting my hand.
This was a 2am idea so I'm sorry, but consider: Pride and Prejudice AU. Spock as Mr. Darcy, Jim as Elizabeth Bennet and he's been adopted by the McCoys so Bones is also a Bennet girl. Also Spock and those big brown eyes and "I love you... most ardently." *sigh*