Dense breasts breasts with the same mass as normal breasts, but compressed into a raisin or sausage like protrusion that is sometimes confused with a nipple, but is in fact distinct as the entirety of mammary gland itself.
Although widely stigmatized and honestly being pretty fucking horrifying, dense breasts have recently enjoyed a surge in exposure as a result of being culturally normalized across Japan after being prominently featured as a physical attribute of the popular Dragon Ball Super character, Monaka
Monaka is the most powerful fighter in the 9th Universe - are his densebreasts the source of his powers?
Breasts with more supportive tissue (dense breast tissue) are firmer and harder to the touch than are breasts with more fatty tissue (nondense breast tissue). A good balance results in soft, supple, yet firm and perky breasts.
Cancer is harder to detect and more likely to occur in dense breasts.
Sounds weird when used to compliment nice breasts unless referring to perkiness because that would otherwise indicate a hard breast, similar to some augmented breasts.
Background: www.mayoclinic.org
I think you meant perky, not dense breasts when you complimented his/her breasts.