Have you ever told a woman you want sex on a date? If you are a single guy meeting women at some point things will get out of control. Heck, your only human.
Sometimes “things just happen.” However, you should NEVER tell her you want to f**k her. Don’t even do it if you’re trying to be cute or clever.
Why? First, it probably won’t happen. Second, things will begin to get uncomfortable and your date will be over. She will make up some random excuse saying “I have an early morning. Call me tomorrow?”