red sex 

having sex while a female is on her period

i took a trip into the red sea today

red sex by jenni November 18, 2003

Red sex 

It just means period sex

Me and reina had red sex. What a mess

Red sex by Lachonafoo March 16, 2019

red sex 

sex while the woman is on her period

why is there blood on your bed
because dat dumb hoe din't tell me she was on her reds

red sex by craig March 11, 2003

red sex 

When you're doing a girl and her vagina is bleeding.
During this week, it makes raw sex not only safe, but more enjoyable as opposed to with a condom.
Caution: Can be more messy than normal sex.

"Red sex last week was amazing."

red sex by s4mthug July 30, 2005

Red Sex 

A mispronunciation of a baseball team of Boston Red Sox by some female news announcer on Fuji TV about 15 years ago, which became a hilarious meme for another few years.

This similar incident also happened with Chicago White Sox about the same time, which was mispronounced by a middle aged male news announcer on NHK.

White Sex and Red Sex are different, so choose the colour wisely!

Red Sex by Shiine-1 December 14, 2022

red hot monkey sex

sex so intense that you'll keep going and going and leaving you hot sticky and sweaty and out of breath

"Edward and i had red hot monkey sex ALL night last night"

red hot monkey sex by sdtthshs January 3, 2009

Red Pants of Sex

Similar to the elusive Purple Shirt of Sex, the Red Pants of Sex refer to the glorious pair of y-fronts worn by John Watson. The Red Pants originally were the devices of the brilliant Reapersun on Tumblr. The Red Pants of Sex even have their own day of the week (Monday) and are loved by many. In some parts of America and the UK, they are worshipped by many pubescent teens.

God save the Red Pants of Sex.

Red Pants of Sex by Improbablebean May 23, 2018