18-year-old caught cheating partner spying on her in lingerie, leading to intense emotions and orgasm

Once a girl finds out that her boyfriend cheated on her, an 18-year-old girl shamelessly caught her boyfriend cheating with her mother-in-law. Still perplexed she goes to her bedroom leaving stripping half-naked, wearing only undergarment. Clothing begins to come off the female, and the male follow suit, causing sex to commence.