No Erection

Scenario: After a long night of strong liquor, you're too drunk to get it up. You're limp. Or, it could be that you haven't been drinking, but some stress has left you soft.

Solution: Do not pretend that nothing has happened and try to shove your flaccid penis in her vagina. Offer a joke about your penis not cooperating, and move on to pleasuring her. If you do it well, she'll care less about your temperamental man parts. There's always next time.