Just make sure you rehydrate. Keep in mind that 'rehydration' doesn't just mean water, it means keeping a proper electrolyte balance. Throw in some liquid IV every few days of heavy sexual activity. Whether it's bad sexually is between you and your partner, but ultimately it's just your body. Don't let anybody shame you for your body. If you mean whether it's bad, health-wise, you should definitely ask your doctor if you're curious or concerned about it.