“Any woman can have the body of a 21-year-old, as long as she buys him a few drinks first”

“Any woman can have the body of a 21-year-old, as long as she buys him a few drinks first” is a jocular one-line saying that has been printed on gift items, such as bumper stickers and post cards. The saying has been cited in print since at least 2003.
 
     
Yahoo! Groups: Puns of the Day
Stan Kegel
Sep 1 10:06 AM
PUNS OF THE DAY: 09-01-03 Happy Labor Day
(...)
Any woman can have the body of a 21-year-old as long as she buys him a few drinks first. (Douglas Helsel)
 
Google Groups: alt.tv.one-life-to-live
Rumor: Casting News
�awn
9/7/04
(...)
Any woman can have the body of a 21 year old…..
As long as she buys him a few drinks first.
   
Google Books
The Biggest Joke Book Ever
By Jack Jacoby
Victoria, BC: Trafford Publishing
2008
Pg. 531:
Any woman can have the body of a 21-year-old, as long as she buys him a few drinks first.
 
Twitter
Cindy Gallop
‏@cindygallop
Any woman can have the body of a 21-year-old - as long as she buys him a few drinks first. (via @aweesan) #toyboywarehouse
2:11 PM - 4 Mar 2010
 
Twitter
Google Joke
‏@GoogleJokeORG
JokesDog: Any woman can have the body of a 21 year old… as long as she buys him a few drinks first. - http://googlejoke.org/jokesdog-any-woman-can-have-the-body-of-a-21-year-old-as-long-as-she-buys-him-a-few-drinks-first.html
10:06 PM - 13 May 2013