how can my girlfriend last longer during sex?

the sex is good, a little too good for her, she can only last about 10-12 minutes, and after she orgasms it takes her a little while to recover. Shes never had this problem of having an orgasm so quickly. It bothers her cuz she wants me to have one too. Im not sure about what to do…

tease her…
slow down when she gets close
or get her to go down on you first until you're close