Dad Said I Am Sweeter Than Mum In Bed...Please Help!!

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 dont 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..