Inter-twinned [M/F, incest-ish, mutual masturbation, light threat]

The first time she caught me, she barged into my room while I was lying on my bed jerking off. The door swung open seconds before I reached my climax, after 25 minutes of sensual stroking, alone with my imagination. We locked eyes for a singular, infinite moment as the first spurt of my cum shot up, making a splash landing on my chest. I grunted at the pleasure of cumming and the shock of her walking into my room at the exact moment. Stunned, jaw slack in awe, her eyes moving from mine to my cock and stayed locked onto it as the remaining ropes of hot white sperm flew up, glazing my body. It was only about 30 seconds of mind blowing orgasm, but with her standing in my doorway looking down as my hand remained clamped on my cock, it felt like an eternity.