from what i've seen in people, woman tend to age faster than men.. i see couples in their 40's, they'd be the same age, but the guy would look a good 10 years younger.
if you wanna have fun, go ahead!
if this is gonna turn out to be long-term i would probably just avoid it..
donno if you've seen this bowflex commerical of this 51 yr old grandmother who looks like she's 25.. if she's like that then she'll have lots of prime s3x years ahead of her.. if her face is already wrinkling.. don't do it!