When i was young i came home early instead of staying at my friends house and walked in on my mother laying on the carpet in the front room with my sisters 18 year old boyfriend between her legs which were hoisted high up his back and she was gripping his bottom pulling him into her.Looking back i realize it all must have happened on the spur of the moment as she was fully dressed apart from her panties which were still hanging of one leg and he was really thrusting his cock up her as she moaned with pleasure.I called them some really bad things which in my mothers case i knew she was not but i never told my dad or my sister .My mother later said he was so strong and had pulled her panties nearly of over what she thought was an innocent little tease but she admits that once his cock entered her she wanted him to carry on.