you guys needs to get invested with toys.
from a guy's point of view, getting off is all we have in mind, start asking the girl to FULLY let her be in control to cum first. as in you jut watch and let her masterbate herself, ask her how she can cum super fast and then expand from there.
if you got a girl that doesn't know how to cum and unable to do that, u ain't going to have fun, so start with these toys
vibrator: either a clit vib or a g spot vib.. make sure you get water proof and rechargeable.
when she is happy with easily cumming, then you can expand to
Ben Wa balls, also known as Burmese bells, Benoît balls, Orgasm balls, whtaever you want to call it.... when a girl is comfy with
Then this
straps. start with these.

remember to NEVER EVER tie someone down or let a chick tie you to a bed... ALWAYS have an exit strategy
then this
anal beads - starting from the SMALLEST bead will get you started. (it will say it's entry level beads)
anal beads, if you are a true sex expert and if your gf is adventurous enough, she can use it on you. when she is comfy with anal beads, anal shouldn't be a problem.