Girls like Mori definitely have an extremely embarassing condition. If their milkers are too big, they are literally reminded of their existence every waking moment because of the strain they cause on their backs. Even with a sports bra on, they probably'd jiggle uncomfortably all over the place the second she'd try to move in a pace any faster than a brisk walk. Being taken seriously by men while showing cleavage is almost impossible, since they'd more likely think you're just an accessory to your tits and not the other way around. You're finally home alone and comfortable enough to not wear a bra at all? Too bad. No matter how baggy your clothing you'll still produce an extremely noticeable boob curtain and your nips' outlines can be clearly seen through your shirt while they rub uncomfortably against the fabric. It'd be painful even if you were lazing around and got on your stomach, since your body would press against your tits and hurt you.
Titcows live an extremely pathetic, embarassing existence where they're reminded of their udders every waking second. It's no wonder that a lot of girls cursed with huge milkers get them surgically downsized as soon as possible.
