Should I have sex with my sister?

I'm 16 my sister is 17.She's rlly smokin hot and she has the perfect body.Her boobs fit in a size 34dd bra,her thighs are so big and look like steel,her *** is almost the size of a basketball and she is so good looking!One day I was hugging her and I got a ***** by accident because it was so hard to control myself.Then she started hugging me more often and just yesterday night she told me to come to her bedroom so I went there and she was wearing a bikini.At that time I just couldn't control myself and I said "you are so f'in hot!"She started to smile and she came up to me and started making out with me and pulled my pants down.I backed away and told her I'll think about it and she seemed dissapointed.So here I am asking you guys for your opinions.Should I bomb her from head to toe or have some decency and tell her to back off since she's my sister.