i will tell you guys my experience and let you decide. i don't judge.
there are some female friends of mine like this, but i will tell you one story in particular ( the rest is similar with small differences)
when i have worked at a TV studio, i met a girl, nice looking, sweet innocent behaviour. she was married for 2 years. we became friends, nothing sexual, me knowing she was married, never wanted to escalate and she was good fun as a friend.
then i have made my own web developer firm, and we talked a lot less, because the husband was the jelly type, and she seemed to respect that.
this year she ended up at a new job near where i have my firm, and we talked more on chat and live.
she made some hints as to being a "bad girl" and feeling shame for it. me, not passing judgement, listened, and told her i wasn't the saint either (in fact i was quite the platespinner even if i had 6 years LTR going on already with a girl who was virgin at the time, and she is quite the submissive and loyal type - although i can never be 100% sure ofc)
so this married girl escalated emotionally, telling how well i understand her, and not judge her, blabla, and she is in love with me from the moment we first met. i was like WTF O_O, but i wanted to bang her also so it was cool, and didn't freak me out. she wanted me to take some nude pics of her as a "gift for her husband". me not being a total idiot, rented a hotel room "because we wanted a pretty setting for the pictures", but in fact both knew we wanted something else, but in this scenario she can "lose her mind" and so she won't feel like a slut coming to a hotel to screw. we settled on a date when her husband is out of town, so we won't have a time frame (aka. we wanted to spend the night together.
next morning she confessed she was already sleeping with her husband's boss, and some other guy who all had LTR's or wives. also she wants me to make her a baby. this, i won't do.
the main thing is here, that her husband, although being the jelly type, SWEARS that his wife is faithful a loyal angel, and like religious fanatics, won't believe the contrary even when presented with evidence. he just loves his delusion.
tl;dr version, and my conclusions: sexual history can be a red flag, but by no means a sure thing; people like to delude themselves with positive and negative thoughts that somehow comfort them, regardless of it being true or not; and NEVER trust women.there can be a reasonable expectation and trust, but to close your eyes is very dangerous.
i leave you guys to draw your own conclusions.
sorry for the wall of text, if some think it was pointless, it probably is. for some, it can be useful.
thanks for reading it.