3sum 

where 3 ppl, usually either 2 males and a female or 2 females and a male have sex together, lots of diff postions and is quality to do !!

u blow me girl and u the other girl sit on my face

3sum by know it all February 17, 2005

3sum 

Engaging in sex acts with two other people; either MMF or FFM. Usually used in text speak.

Wanna 3sum 2nite?

Most peopl fantasise about 3sums

3sum by freakshow July 14, 2005

3sum 

When two people have sex, And the third person video records it.

Bob: Yeah, I had a 3sum last night!
Tom: Was it good?
Bob: The third person, Was such a good recorder, It could have been a porno!
Tom: When you make it A movie, I'm buying it.

3sum by BlahhhhhhBiiiittchh! January 14, 2010

3sum 

3 HOT HORNY SLEAZY GUYS ALL FUCKN EACH OTHER ALL THE WEEKEND LONG

Let’s have a good hot 3sum and get wired

3sum by MR J PIG September 27, 2019

3 sum 

When three Fuck hopfuly when the guy gets 2 gurlz at once like me all the time

John gets his cock sucked by traci while eating out shawna all that time

3 sum by John OD November 2, 2003

landen and brenden having 3 sum 

When you find a girl and start having a 3 sum with her then you randomly stop nad start sucking each others dick

Dude last night I had the best landen and brenden having 3 sum. It was so much fun

landen and brenden having 3 sum by Penis in butt January 27, 2021