Mom's helper: stepson helped stepmom cum after catching her masturbating

A Russian guy came home a little earlier than planned and immediately went to his stepmother's bedroom to get his phone charger. What he saw there made his cock hard. His stepmother was masturbating in bed with a vibrator and a dildo... but she couldn't cum. The stepson immediately offered his help, which consisted of fucking her and bringing her to orgasm with his hard cock. The main thing was that his father didn't come home earlier than usual.