You're going to have to bear with me on this, don't start throwing stones until you've read it all.
there was a lady at a wedding i attended last weekend. she was over 80. if you didn't know that you would have guessed mid-60s and would have said (in fact i think i did) "you would though, wouldn't you".
My MiL is distinctly presentable for a 70 year old lady. I wouldn't *quite* bring myself to the point of 'you would, wouldn't you', but if i was maybe 20 years older and the age gap not so big then I might be in that camp.
Which i'm hoping is a good sign, if her daughter continues to develop the same traits and characteristics, then maybe in 20 years time 'I will be, won't I'
Apologies to readers under 30 retching at the thought of Granny sex.