Slightly risque comic. Can't believe I never posted this. The title of the story is "The Bet".

A female bondage artist makes a bet with the narrator that she can escape from any knot. If she escapes in 3 minutes, she gets all his assets. She ties herself up and tells the narrator "You can literally do anything you want with me."

Big mistake. The narrator secretly takes out a bottle of ether. Right before the bikini clad woman can free herself, she is chloroformed from behind, causing her to lose the bet, and much more...

Source: http://www.geocities.co.jp/AnimeComic-Ink/6067/eka01.htm