Let her cum while you cum

"Ok ok, you've passed this test. I'm just gonna finish in your asshole before we start the next task. When you feel my cum inside you you can cum as well" you tell her

"Finally! Please cum in my asshole fast! I need the cum to fill my tight little ass! I need to feel every drop of you inside of me" she moans in reply

You start pounding her asshole relentlessly, getting closer and closer to cumming inside her. Finally you unleash a torrent of cum deep inside her and you feel her body shake around you as she finally succumbs to her long awaited orgasm. She's shaking for a good few minute before you pull your massive cock out of her gaping asshole, cum leaking out of it quite rapidly.

"Looks good! Now what..." you ponder