No I couldn't do it
After years of great friendship, we spent the night together. We flirted all night at a party then shared a bed. The evening was full of laughter. The night full of love making.
The next morning all the years of flirting and joking ended as did how close we once were.
Would not do it again.
Interesting that this question is here today. My BFF female friend and I were just discussing hooking up for the sexual pleasure. We're both divorced and retired (me- dwm 60, she- dwf 59). We've always told the other about sex with other people, so we know what each other likes, has done in the past, etc. We plan on being "travel partners" and we're worried if we do have sex it will mess up our friendship and travel plans.