Damn. I forehead kiss the wife mid-coitus all the time. But we probably do way too much "creepy" during sex anyway.
I was with my ex-wife for 15 years including time dating in high school and college. We would still marathon bang after the divorce proceedings started. I think that's a matter of taking care of yourself, clicking sexually, and being into experimenting some.
I've only been with my current wife 3 years so we're still in the marathon stage easily. I have insomnia from time to time and it's her go-to to get me to fall asleep. Works most of the time. But yeah. Nearing 40, 3 straight bad sleep days kill my sex drive. Still, it's a guarantee even then if I drop down on her, I'll be ready to go a minute in. Pussy is delicious.