The phrase “big natural tits” refers to a female anatomical feature which entails larger-than-average breasts with no surgical implants. It is often used in the context of the adult entertainment industry or in dialogue between individuals with a particular interest in or preference for larger natural breasts in sexual contexts. It can also be associated with fashion, as larger natural breasts are sought after by many women for their clothing and swimwear options. However, any use of this phrase should be handled with sensitivity and respect for both those who may naturally possess larger natural breasts and those who may find such features aesthetically or erotically appealing.