689 

A form of analingis that occurs between two partners, in which both partners lick each other's anus.

Essentially, it's like 69ing, but with buttonholes-- a double rim job.

My girlfriend was giving me a rim job and wanted one too, so to make it fair, we started to 689.

689 by plust October 23, 2014

689 

When one person has an average size penis and a deep vaginal cavity inserts their penis into someone else with a big penis and an average depth vaginal cavity whilst the second person does the same to them.

"my boyfriend and I do 689"

689 by anonymous_hoe_;) December 3, 2021

3,689

A 3,689 requires three parties, and features a person in the center of a 69 sandwich alternating between the person on his/her left and his/her right. For infinity, forever, eternally.

Sam, Dani, and Max were 3,689-last night forever, until they took an energy drink break and a nap, and then they went right back at it. I heard they mixed it up a little and rimmed each other a lot, too. I'm so jealous, sounded like fun from the other room.

3,689 by FourthBase October 11, 2020

6.89 

When you fuck a cup of water and then drink it.
It's what gangstars used to do before tv was invented.

Oh yeh man I totally fucked this chick right, and then she did a 6.89, it was fuckin sick as.

6.89 by Srdjan March 17, 2008

oeuntm8943ew 689tymatym-5a-y,ur0-ey,ha4-yu8k,i-a0b ,.5i0-3b.=45B.0 O936B,9T0-=354I,OB=ayu5690n9m565y-02N-] M6I- 

oeuntm8943ew 689tymatym-5a-y,ur0-ey,ha4-yu8k,i-a0b ,.5i0-3b.=45B.0 O936B,9T0-=354I,OB=ayu5690n9m565y-02N-] M6I-

oeuntm8943ew 689tymatym-5a-y,ur0-ey,ha4-yu8k,i-a0b ,.5i0-3b.=45B.0 O936B,9T0-=354I,OB=ayu5690n9m565y-02N-] M6I-

oeuntm8943ew 689tymatym-5a-y,ur0-ey,ha4-yu8k,i-a0b ,.5i0-3b.=45B.0 O936B,9T0-=354I,OB=ayu5690n9m565y-02N-] M6I- by 4985165 July 30, 2022