Sexversations 

Communication, dialogue, discussion, or conversation that promotes personal sharing, inquiries and critical thinking around all things sexual. Healthy sexversations are framed around safer sex practices, consent and empowerment.

Frequent sexversations increases your sexual IQ.

Sexversations help break through societal myths and taboos.

Sexversations by Sexpert at In Our Own Voices June 25, 2013

Sextversation 

An adult conversation or exchange taking place exclusively through text or instant messaging.
Typically starts off benign and then turns sharply to the gutter as time goes on.

My texts with Tracy were friendly at first but after a few days we became aware of a mutual attraction and our communication evolved into hot sextversation...

Sextversation by Brewton September 22, 2014