warm, wet. having a responsive woman as your partner. feeling her react upon penetration, especially if you are hung. there's the struggle to handle your size, but still trying to gobble it up. the apprehension, the anticipation. the actual act of fucking. getting close to orgasm, she's panting. you're about to blow. your cock is swelled to it's max. you're balls deep. she got her legs around you taking every bit of you and BAM! she cums and you cum...together. my wife and I probably cum together 90% of the time.
I grew up in the sex revolution of the 60's & 70's. women were on the pill. the only time I used a condom is if the girl wasn't on the pill. I didn't like screwing girls that were not on the pill because with my large size and condoms being pretty much "one size fits all" and not being big enough, I shredded condoms easily.