I herd strange sounds coming from my parents room and came in to find out what was wrong. I was shocked to catch my sexy, buxom, slender stepmom fucking herself with a big dildo. She confessed that she needed sex badly, and my dad was too old to satisfy her young lusty nature, so I offered her to fuck with me. My huge hard boner, surely, gave her the desired orgasmic pleasure and a huge cum-shower in the end helped her cool her ardent temper.