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1.
A very complex and rule based sexual conquest in which a guy has sex with three girls in a two week time period. The Natural Hattrick can only be accomplished if the following conditions are met by the participating guy, referred to from here on as "the participant":

1. The participant may not have had any prior sexual contact with any of the three girls. A Natural Hattrick cannot be accomplished if the participant has ever engaged in any act more sexually serious than kissing/making out.

2. the participant must successfully go three for three attempts, without interruptions of continuity of each attempt. for instance, one may not kiss Girl A, have sex with Girl B, then have sex with Girl A. Once the participant makes any contact with a girl, starting with kissing, he must have sex with that girl before he initiates any contact with another girl. If the participants has sex with Girl A, Girl B, gets a blowjob from girl C, and has sex with Girl D, he has not satisfied the rules Natural Hattrick. He must start over, with Girl D being the first girl.

3. All three girls involved must be physically attractive to a degree of at least a 5.0 on a scale of 1.0 to 10.0, 1.0 being the lowest. This must be verified by a panel of at least three male peers. Of this panel, each individual must assign the girl a number between 1.0 and 10.0 to the nearest tenth of his ability (5.1, 5.6, 6.5, etc), and the average of the three given numbers must be at LEAST 5.0.

4. The time limit to accomplish this goal is exactly 2 weeks from the moment of penetration with the first of the three girls.

5. All girls involved must be engage in sex with the participant voluntarily and without monetary solicitation. No prostitution, rape, or statutory rape.
haha, joe's facebook status is "i just pulled a natural hattrick!". there's no way- he's a fucking liar!

Its hard not to be impressed with his game, i hear he's pulled 2 or 3 Natural Hattricks.
by DocYankee December 21, 2008
 
2.
To score 3 goals in a hockey match all by yourself, in other words, no one got an assist on any of your goals, you did all the work by yourself to score your 3 goals.
"Here comes Ian down the ice, skating full tilt, triple deke! He scores!!! That's his 3rd of the night! Nice natural hattrick!
by barons December 23, 2007