That all sounds very sexy! I have a small scar below my lips from an accident i won't go into, i like it though, it makes me feel in some way invicible... hope that doesn't sound too psycotic!
What i will say about tattos is that they feel so invigorating, but i would suggest a symbol you both know rather than an intial, perhaps i am just a superstitious person but it is tempting fate to seperate you....