Just throwing my 2 cents in here. I am a straight, white woman and that's what I typically play as. Now, my Sims have rolled whims that I followed thru that strayed from my normal game play.
If my female sim, who is in no serious relationship with anyone, wants to flirt with betty... by golly... we'll romance betty like no tomorrow.
I just wish we had a relationship system, where we could tag each sim as straight, gay, bi, faithful. Open relationship, player. Non committal.... etc. Because while I tend to play how I live, straight white female married to white male, my Sims can chose whoever they want, I just want them to pick something and follow thru.
Great, Janet, you've got eyes for betty. Let's make that happen, but I don't want to see you flirting with Don tomorrow, cause you are a faithful type SIM.