the communion or penetration of one's mind into or with another's mind, can often be akin to thinking of one another in a "sexual" way to some greater or lesser extent-- or just taking in the push and pull of one another in the form of thought tag.
When she picked up a carrot, he winked his eye-- engaging in mental sex while discussing the price of tea in China at the restaurant.
by mmm August 22, 2003
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two people thinking of having sex with each other.
1: whoah, you could cut the sexual tension between them with a knife
2: they're so having mental sex
by itoldyouiwoulddoitromyyouoweme December 9, 2008
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Kelly just enjoys the mental sex. She loves to screw with your head.
by Chas April 19, 2003
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When your a virgin and your friend reminds you of the other living things have gotten laid before you have.
Peter: man i just really want to get my self a girl its so lonely sometimes.

Tom: yea, are you aware that my dog got laid before you haha he banged this poodle other day.

Also my little sister porked this bushy haired kid down the street lol

Peter: Re-really? *sigh*

Tom: yeah, that old fart Mr. Bradley even got laid, he fucked that 19 year old with the big tits i heard after school lol

Peter: okay man enough dont gotta turn the knife

Tom: and one more thing you know youve been mentally sex fucked when you hear this... your little brother banged zoey at my house 2 weeks ago haha and hes 4 years younger than you.
by Hatingthisday September 27, 2020
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