Robin came across Evolutionary Psychology and sexual phantasies most women have (according to https://www.oprahdaily.com/life/relationships-love/a28697121/sexual-fantasies/).
- being dominated
- having a threesome
- getting it on with someone from the same sex
- enjoying a romp in public
- having sex with total strangers
- or, doing it with someone you know that’s not your spouse
- mixing pain with pleasure
- making love in a romantic location
Robin is pretty sure that evolution and selection play a big role here:
A certain behavior is more likely to produce offspring than another.
Especially 1., 2. and 5 are probably innate, because that was especially successful for the preservation of the species.