Please Help...Dad told me that i am sweeter than mum.

I am a 17yrs girl and in Mathare High School Kenya.... When I’m in holiday, I enjoy walking with Dad than Mum. I have this problem that I get s**xually attracted to my Dad no matter how I try to control myself.

i seduced him yesterday when my mum was away in a wedding and we ended up making love.. I have a boyfriend but I just get attracted to my Dad and I just don’t no why.

I just feel like having s*x with him again and again.. 
What should I do to stop this?

Because he told me that i am sweeter than mum.

Please help.