Seesawing 

When, during missionary style gay sex, the receiving partner's penis flops back and forth with each thrust of the others' dick inside their asshole.

"Did you see your dick while I was ravaging your tight, succulent butthole? It was seesawing all over the place!"

Seesawing by TheRealSugarBaby July 11, 2016

Seesawing 

When you banging your girl and she sit on your schlong and you go up and she push you down and it loops.

Guy 1: I fucked my girl last night. We were seesawing or hours
Guy 2: Oh damn

Seesawing by Your Roblox GF (your uncle) January 30, 2024

seesawing 

Men: wear a backwards strap-on and have two people(men or woman), one in front on behind and does heavy thrusting motions in both directions
Women: wears two strap-ons one on the front the other on the back and does heavy thrusting motions in both directions.

i saw john seesawing with jessica and joel

seesawing by joel chris johnson August 7, 2025

seesawing 

Men: wearing a strap-on backwards with 2 people, one in front one behind, doing heavy thrusting motions in both directions to fuck both at the same time
Women: wearing 2 strapons one in front one behind and doing the same thrusting motion to fuck both of them

i saw john steve and dean seesawing it was fucking gross

seesawing by joel chris johnson August 7, 2025

See-sawing 

The 69 for the obese

For people who are so fat they cannot reach each others genitals, so have to rock in a see-sawing motion in order to complete the act, giving each other oral sex, taking turns

See-sawing by Matty-halls August 3, 2011