Experiencing a chlorine or bleach-like scent after sex is nothing to worry about. It’s most likely due to the particular lubricant or condoms you’re using. Try an unscented lube or a different brand of condoms if it the smell really bothers you. A chemically vaginal odor could be attributed to a bit of urine in your underwear or around your vulva. But please note, it could also be the sign of a bacterial infection. If the smell persists for more than a few days, visit your gynecologist to determine if you have BV.