Not very imaginative when it comes to sex. You rarely ever see tribadism for instance. Or 6x9. Boring.
Well, if there are lesbians here, do you finger that often ? Isn't it better to feel the other's whole body ?
I'm bi so this is serious question from a fellow ...weirdo.
I haven't really had any sexual experience, but I think it comes more to the individual's preference? Personally I think tribadism and 69 are more niche (though not super uncommon) sexual actions that isn't as common as fingering and cunnilingus. Commonly, tribadism and 69 also usually rely on clitorical stimulation, while the combination of vaginal and clitorical stimulation as shown here I've heard gives the reciever much more pleasure than any one of the two alone.
Again, take this with a grain of salt. I've only really read about these things in wlw forums and references. As to why I have so much information about sex despite not having any experience, and not wanting to in the near future, I don't know. Guess I'm a weirdo too.