Should I have sex with my aunt?

My aunt is a very beautiful and alluring woman, she has taken very good care of her body and doesn't at all look her age. She's 61 but has the body of a 29 year old at least if not early 30 something with long red hair and perky large breasts. When my aunt wants something its always been hard for the men in her life to resist her. Before my uncle died he jokingly warned me that she was a real tigress. At the time I laughed it off as just some playful banter from one half of what seemed to me to be a loving married couple. Anyway though to make a long story short after my uncle died my aunt found ways to have us get together. I thought nothing of this, having naturally written it off as her just needing some family support and companionship having just lost her husband a year ago. That was until one day sitting at the beach together alone and having a long conversation there was a sudden pause in the conversation, you could hear a pin drop, and before you know it we were passionately kissing and groping eachother. About 10 minutes later we heard approaching voices of fellow beach goers which snapped us out of our passionate trance. As we got up to go before parting ways my aunt seductively looked at me and said "we've got unfinished business, meet me this Saturday at my condo at 8pm". What I'm wondering is should I close the deal or what? My better sense tells me this probably isn't a good idea but another part of me, I'm sure you can all guess which part tells me you only live once and to go for it and have fun. What to do, what to do...