They probably hiked far to find a secluded spot to get to know each other better. She was pleasantly surprised to find a nice fat cock on him and there was no going back. It looks like she's a tad self-conscious about her stretch marks but knows how to use her slip to cover and accentuate her milf body. His eyes should be focused on her pretty face anyway, and his mind on her heavenly thighs straddling him, as he feels her experienced pussy engulfing and pleasuring his cock. Did he get to blow his top in her pussy?