*(Katie's POV)

“Katie! Sweetheart, we’re about to cut the cake! Everyone’s waiting for you downstairs!”

Mom’s voice floated up from the bottom of the stairs, bright and excited. My heart pounded in my chest so hard I thought I might just faint there.

I was still naked on my bed, legs spread, Tony’s thick cum leaking out of me and dripping down my thighs onto my birthday sheets.

My stepbrother was right behind me, breathing hard, his cock still half-hard and glistening with our mixed juices.

“Oh my God…” I whispered, panic flooding me. “Tony, that’s my mom!”

I scrambled off the bed on shaky legs. Cum ran down the...