Could be love. I think that she is hot and turns this guy on. Quite a few years there between them. Quite a lot of experience too. Is it an opportunity to show this 20 year old the way it should be…make here addictive to his ways of pleasuring her. Maybe create a dom/sub? Or is it just natural. Seems like an imbalance of experience. Creating huge opportunity for the male to service her, steal her heart and control here newfound pussy.