Double Nose Bleed
The act of two lesbian lovers having sex in the 69 position while they both have they're periods in each others faces.
"hey did you hear about Stacy and Olivia?"
"no, what happened?"
"I heard while they were up at the lake house they had a Double Nose Bleed."
"...sluts"
"no, what happened?"
"I heard while they were up at the lake house they had a Double Nose Bleed."
"...sluts"