Conversation that is focused on all things technical, mathematical, or generally scientific which provides for or leads to sexual stimulation.
John spent hours teaching me about the moon jellies...the most common jellyfish species found in the genus Aurelia. I love it when he will talk nerdy to me.
To send or receive an intimate or endearing text message just before going to sleep for the evening.
My boyfriend sent me an endearing tuck in text wishing me sweet dreams.