Growing up, a fried’s dad used to tell telemarketers the following: “could you call back another time, I’m about to fornicate with my wife…”
Although, he had said that he had just downed a handful of viagra and I was running the clock out on that so he really, really had to get off... the phone.
Telemarketing was one of my first jobs between high school and college. I hated the job and I was fired because I couldn't sell anything to anyone. Area jobs were very slim and I didn't have much experience, and it paid considerably better than mcdonalds - I apologize to World+Dog for being that obnoxious nuisance. I landed a job in IT shortly therafter and never looked back.
Though I should point out that some dictionaries will list the "just another word for sex" definition either as a colloquialism or a secondary definition.
Note that e.g. M-W does not list this secondary definition: https://www.merriam-webster.com/dictionary/fornication