song about a young guy having sex with older woman

heard this song awhile go its like alt.pop song and hes singing about having sex with an older lady

Maybe...

Stacy's Mom (Fountains Of Wayne, 2003, "Welcome Interstate Managers" album (6-10-2003))
http://www.youtube.com/watch?v=7UUPawNC5Lg

If it's an oldie it might be...

Summer (Bobby Goldsboro, 1973, "Summer (The First Time)" album (1973))
http://www.youtube.com/watch?v=mYHEBa6Xx48
Me and Mrs. Jones (Billy Paul, 1972, "360 Degrees of Billy Paul" album)
http://www.youtube.com/watch?v=gxDggID_vtI

In an obtuse sort of way, it could be this Simon and Garfunkel tune:


Mrs. Robinson

And here's to you, Mrs. Robinson
Jesus loves you more than you will know (Wo, wo, wo)
God bless you please, Mrs. Robinson
Heaven holds a place for those who pray
(Hey, hey, hey...hey, hey, hey)

We'd like to know a little bit about you for our files
We'd like to help you learn to help yourself
Look around you, all you see are sympathetic eyes
Stroll around the grounds until you feel at home

And here's to you, Mrs. Robinson
Jesus loves you more than you will know (Wo, wo, wo)
God bless you please. Mrs. Robinson
Heaven holds a place for those who pray
(Hey, hey, hey...hey, hey, hey)

Hide it in a hiding place where no one ever goes
Put it in your pantry with your cupcakes
It's a little secret, just the Robinsons' affair
Most of all, you've got to hide it from the kids

Coo, coo, ca-choo, Mrs Robinson
Jesus loves you more than you will know (Wo, wo, wo)
God bless you please. Mrs. Robinson
Heaven holds a place for those who pray
(Hey, hey, hey...hey, hey, hey)

Sitting on a sofa on a Sunday afternoon
Going to the candidates debate
Laugh about it, shout about it, when you've got to choose
Ev'ry way you look at it, you lose

Where have you gone, Joe DiMaggio
A nation turns its lonely eyes to you (Woo, woo, woo)
What's that you say, Mrs. Robinson
Joltin' Joe has left and gone away
(Hey, hey, hey...hey, hey, hey)