Boobs is more of a casual conversation term. Hot sexy whisper breasts and you are on the right track. Say titties and I'll think you are not man or woman enough to be with me. Boobies, means we are laughing and joking around. Knockers, bra buddies, milk bags, etc. I will politely smile and hook up with someone else.
Breast ,boobs, tits it doesn't matter call them what you want they are all the same thing no matter what you call them. I do like the term Boobs though
Dirty talk: tits
Compliment: boobs
Breasts is just to formal
Breasts works for me. Or, "the girls". Boobs is ok. Never liked "tits"
Its like Eskimos and the many words they have for snow... breasts are such wonderful things, you can't have enough words to describe them! When a friend of mine from England first saw my breasts, he said "What a lot of bottle!" That was a new one I'd never heard.
It depends upon my level of sexual arousal - if I am in action or my wilder mode - anything they like.
If its in general conversation - breasts.
I hate it when somebody tells me - show me your tits.
Boobies seems juvenile to me - its a kids term.
Boobs hear them called that more often than not
Breasts when feeling seductive or being clinical, boobs when joking with other women, and tits when joking with guys. Always crack up with tits; always remember the Cheech and Chong routine about tater tots and tits? Part of the 7 words you can't say on TV.
Speaking in characters? Kelly and Shauna and Vanilla Girl have no qualms about using "tits" or "boobs," but to shy Fiona they'll always be "breasts."
i usually go with "tits," especially in a sexual context. "boobs" sounds kind of goofy, and so doesn't work well for me in that kind of situation. "breasts" is fine, but nothing special. i wrote a whole article about this at some point, maybe i'll try to find it and post it here somewhere. but the general closing idea was something like this: breasts are a part of my body, something i wash in the shower, etc. boobs are the big clumsy things i keep in my bra that sometimes get in my way. tits are what love getting attention from licks, kisses, caresses, and all that good stuff!
Breast
Boobs
Tits
Ladies
Melons
Pillows
Headlights
No matter what they're called it all just boils down to they're something to play with.
Breasts is just to formal..
Boobies are for children
Tits is just rude ( unless it is involving sex ) Ie. take your TITS out and Fuck me
personally I call mine the twins or sometimes the girls but never ever KNOCKERS
Usually tits.. sometime breasts.. never boobs
Breasts if it's medical. Boobs if it's general conversation. Tits if it's personally sexual. The Girls, if it's clothing related, like a lot of cleavage or side boob; (as in; I've got the girls out). Rack when it's looking at someone else's. (As in; she's got a great rack.). Ta ta's, pillows, milkers, jubbilies etc, only if it's comedic.
Breast when talking in medical terms but I use the word tits in general.
He likes to say 'boobs.' I'm fine with that.
You just tell us; as long as we get to hold, stroke and kiss them we'll call them anything you like. Mx 
