You're being a douche bro. Unless you've got some erectile disfunctions or unless your winny is REAL tiny, you shouldn't have a problem! You just need to be able to do the task. Furthermore, if you can stick with her, pour your love and caring to your significant other then sex would surely be good. If you see her as a sexual object then you're gonna be viewed upon as a worthless piece of shit as well. Times have changed and women have evolved, even in Nepalese culture. Gone are the days when women used to tolerate you if you can't do the job properly, you know what I mean? Even if you can't, there's that certain substance called "Viagra" that can do wonders to you. Hope it helps..