I bet u last longer than the girl cuz ur a bossHard to tell it will depends women to women, her arousal level and how quick you trigger the sweetspots inside the vagina (alongside the clitoris) before her arousal fall off.
Ofc you having stamina will be versatile because women can cum multiple times without long retractation periods like men.
If you know what you're doing you can make her cum in few minutes and other time it can be up to 30, 45min up to a hour