I want you to use your safeword when I'm close. Just so I can ignore it properly.
Maybe it's "play". Helping you with that desperation that comes over you when you're ovulating. A man you can trust, with his bare cock inside you when you're at your most vulnerable; someone who'll fuck you raw and then pull out, who'll give you everything you're craving except an unwanted pregnancy.
It'll be so sweet to see that look on your face, of fear surfacing through the bliss, as my cock starts to swell inside of you. To hear you gasp out the word that should stop everything, only for me to groan as I sink all the way into you and start to throb.
I want to smile at you, afterwards, and tell you that you just felt too good - while dread makes your stomach sink, and my sperm swim deeper into your womb.