She wasn't dissatisfied with her boyfriend, but she desired more fulfilling sex. To fulfill this desire, she chose to watch her boyfriend have sex with another woman. Watching her boyfriend enjoy himself with another girl aroused both him and his partner. Though this was her own decision, seeing her boyfriend taken away stirred mixed feelings of jealousy and excitement, and she couldn't hold back, beginning to masturbate. Her pussy gushed endless amounts of love juice as she became enveloped in passionate pleasure.