Most Helpful Girl
It's called the gore and yes, it's supposed to be touching your torso. You should also be scooping all your tissue forward and into the cups as well as making sure your underwires are all the way up in your inframammary crease. Most people are wearing ill fitting bras because stores use outdated sizing that puts people in a too large band and too small cups. Check out Bra Band Project to see what bra sizes look like when worn correctly. Ideas like "DD is huge" is completely wrong.