Allie stroked me for a few more seconds until I was done, just as the cheesecake arrived. She moved her hand away, showed me a wad of cum on her fingers, and slyly moved them to her lips.

I groaned at the shocking sight of my sister eating my cum.

"Mmmmm," Allie moaned.

"You haven't even had a bite yet," Mom said, as she sliced into hers.

"It just looks so creamy," Allie said, so wickedly.

"Mmmmmmm, it is," Mom said, as she took a bite.

I ate my dessert and finally put my cock away, in awe of my sister's wildness... the rest of the evening being rather normal....