Seducing my Girlfriend's Mother

I thought I'd explored every sexual kink and experience in my open relationship with my lovely Cheryl. She was happy for me to have fun with anyone, as long as I cleared it with her in advance. Then, I broke the rules! Not only did I take advantage of an exciting situation without discussing it with her beforehand, but the excitement was her own delicious mother, Linda. In for a penny, in for a pound, Cheryl was away, so while I figured out how to make it right with her, I took Linda to a sex club and really opened her eyes!