HerRoom Response: When your underwires pop out and forward between your breasts, this is a symptom that your cup size is too small. You probably need to go up to a 38DDDD or 38G. Your comments about the underwires poking you under your arm and being seen under your v-necks...if I were a betting woman, I would say you are short in stature (under 5' 4"). This is a very common symptom for shorter women. One solution is to purchase demi cup bras. THe underwires are shorter and the poking should then go away.