Helping clean their now shared apartment, Credence accidentally finds Graves' old magical sex toys. After some hesitation, and not without guilt, he proceeds to first finger himself and then fuck himself stupid with a very pretty very big wood vibrator while thinking of his Mr. Graves.

Bonus points if:
- It's the first time Credence plays with his own ass, and Graves hasn't taken him yet.
- Graves finds him by accident, and proceeds to replace the dildo with his excellently endowed cock.