Are your delts – or anything else, for that matter – supposed to cover your shoulders* too? I'm generally fit, though admittedly my delts are my weak spot. But the thing is I don't have any muscle tissue on my shoulders altogether, it's just bony spikes with skin stretched over it. Recently I took up doing butterfly raises to specificaly boost my front and middle delts, but I see gains going only sideways, there's still no muscle at all on the upper surfaces. Why am I concerned about it in the first place? Well, it's almost embarrassing to tell, but every time a girl ventures to lean her head on my shoulder, it makes a terribly awkward experience for me (and a terribly uncomfortable experience for her)!
*as in "the parts of the human torso forming a relatively horizontal surface running away from the neck"