(Would it cause any problem, while having sex with female)

why dont you go and find out

I'm pretty sure that masturbation does NOT cause a curved or twisted penis. It's completely natural.

As a matter of fact, a curved penis can work in your favour. When the penis is curved, it can stimulate certain areas of the vagina (ie: the G-spot in interesting ways) that an otherwise straight penis cannot.

When you begin to have safe, consensual sex, you should experiment with it and see where it gets you. You have the potential to significantly satisfy any woman!