The most basic and shittest form of memes that people would usually post on sites like reddit, tumblr, or porn websites that would usually end up unfunny 90 percent of the time. Typically by horny people who wished to be laid trying their very hard take at being funny by using sex topics to fill their desires, sometimes with incest, hentai, or groomer bait slapped on it.
Some would usually contain gifs from existing pornography movies, the other genre "fucked up porn memes" where it mainly just contains language meant to be offensive to the reader or just outright cuckoldry or misogyny slapped on it.
Usually the "sex memes" would probably contain this type of text formula:
Me when I go to (Insert place) and fuck (Insert some close partner/relative/friend) while she/he was (Insert everyday thing) and then (Insert sex act).
Example for average sex memes:
"Me when I go to Walmart and sex my girlfriend while she was scrolling around and then ask to go to dress rooms and said yes and then cum over and look at me:"
*NICECOCK.PNG*
Or neither just an overused Yomamma joke took a step further
Jeon Jeongguk? I heard he was a fetus before, but now he's sex on legs.
Basically Kim Taehyung aka V from BTS.
Have you seen the new Dynamite MV? Yes, Kim Taehyung looks like Sex on legs there!
When one partner is much taller than the other. The shorter uses an actual ladder to perform perfect cunnilingus or fellatio.
"You too short, you cant suck this dick even standing! Time for ladder sex fellow cellmate."