“So what do you want for a cover?”
“I dunno. Whatever.”
I don’t really have a good tag for “Why are you including these details on the front cover,” but…
The Made (The Calling Series Book 1)
And everything (including the moons) has unsourced glows, which probably also explains the mutations.
SexInfo101.com’s Sex Position Pocket Book: Featuring over 260 Sex Position illustrations.
Just in case real models might look too enthusiastic.