Ryan’s POV

I never thought I’d walk in on my step-sister jerking off with my boxers wrapped around her cock.

It was 2 a.m.

The house was dark; our parents were already asleep. I’d only gotten up to take a leak, I was barefoot and half-asleep but then I noticed the door to her room was cracked open. Unlike usual. Her door was always slammed shut, the “KEEP AWAY” sign board hanging on the knob like a warning.

So this was a surprise.

The glow from her phone screen lit the bed just enough.

Kiera—my 22-year-old step-sister, tall, athletic, always acting like she owned the place—was propped against the headboard...