Also forcing a dry entry
might, in the case of sexual intercourse
, cause tiny
capillaries on either partner's gonads to burst, increasing chances of disease
transmission, like AIDS
infection, and also making the process generally less comfortable
To prevent a dry entry foreplay is performed since through stimulation, cells in the vaginal walls secrete a slightly acidic fluid which besides acting as a lubricant, also provide a mild resistance to pathogens.
This lack of stimulation and in turn, lubrication, is what makes rape (excluding all psychological traumas of course) and tampon insertion painful.
So make sure you never force a dry entry, because besides mostly not being able to make an entry at all, if an entry is made it might be a rough one, causing pain.