Local Genital Arousal: Mechanisms for Vaginal Lubrication Current Sexual Health Reports Springer Nature Link Vagina: Anatomy, Function & What to Look Out For How Can I Increase my Wetness Fast? White Discharge After Sex: What It Means and When to Worry Thomson Medical Arousal, lubrication AND the vestibular glands. The greater and lesser vestibular glands or bartholin and skene glands secrete fluid which provides lubrication. However, this is not the primary source of vaginal lubrication. Primarily caused by declining estrogen levels, it can result in discomfort, pain during intercourse, and an increased risk of vaginal infections. Less estrogen results in lower blood flow and lubrication, causing thinning