lubrificantes

Astroglide has an acidic pH which mimics the natural vaginal fluids, so that using Astroglide does not alter the vaginal pH and is important in controlling the growth of harmful micro-organisms in the vagina and decreasing the probability of thrush, cystitis and other associated infections.

Normally, the vagina's own acidic secretions kill sperm, but the alkalinity of the cervical mucus produced just before ovulation protects the sperm. Artificial lubricants prevent the sperm from reaching the cervical mucus quickly, so they die in the acidic environment of the vagina before getting inside the uterus.

oh fuck! Parece que vamos ter que deixar de lado os lubrificantes! Damn damn damn!