The best kind of sex. Not rape like previously thought of.

It can be long, but is usually a "quickie," sex done quickly and shameless with your partner!

Surprise sex has been going on for millenia and was quite popular in classical Greece and ancient Rome.
Guy: Hey girl, it's me...guess what?

Girl: What?

Guy: Surprise!!! It's time for some surprise make-up sex! You'll love it! It's my surprise sex for you tonight, baby!
by LuffDogDictatesUrbanDictionary January 11, 2010
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He didn't rape me, it was just surprise-sex
by daveybwoi January 8, 2009
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When you have sex but neither you or the person that had sex with you knew it was going to happen.
Lily thought that Kevin wanted to rape her, but all he wanted to do is to have surprise sex with her.
by PhoenixGamer34 April 14, 2021
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Surprise Sex is when you have sex when you least expect it and it wasn't originally planned out.
Me and Joe walk home after a long night at the bar and enter the apartment knocked up. Unexpectedly Joe pulls me onto the bed and begins to strip down morning for me to do the same. Surprise Sex wasn't on my agenda but I don't mind adding it!;)
by Shortafpineappl3 February 5, 2018
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The disturbing act whereby a sexual deviant usually waltzes into ones bedroom uninvited and proceeds to commit ungodly acts upon their anus.Perpetrators tend to be discord moderators with depraved ideas and antisocial tendencies .This act can be spontaneous and seemingly without cause. Surprise sex usually leaves the victim in a vegetative state for a period of about three months ,with symptoms of psychological damage lingering even after full recovery.
John-“You were the one who was supposed to pack the Kevlar pants you fricking asswipe!”
Schwartz-“ah shit.”
John-“Now our feeble buttcheeks stand no chance against ‘surprise sex’ tonight!”
by Really fricking weird guy July 30, 2023
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Many say it is rape and you're only partially right. It is rape but with a willing victim. More like roleplaying with someone who trusts you. By no means inflict surprise sex on someone without their consent...preferably in writing.
by Death's Stalker September 29, 2007
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