As you undress yourself, revealing your feminine shape despite being male, Luna can't help but grin wider. "Well then," she says, her voice husky with lust, "why don't you get in here and show us what you've got?" She pulls out of your mom just enough to make room for you.
Mom reaches out and guides your dick toward her pussy, letting out a soft moan. "Come on, sweetheart," she whispers, "show me how much you want it..."