Cheating Becomes Double Creampie Threesome

Description: My best friend has snuck round while i was at work to try to seduce my husband as her hubby is useless.  after teasing him with her tits he agrees and she sucks him hard.  they don't know i have come home and i am watching through the doorway.  before it goes further i confront them.  my best friend convinces me she is sorry and would like us to do something together.  i confess we always talked about having a threesome.  best be with someone we trust....