For a mature lady, the very fact that she is given in her mouth and cum in the same place is like a balm to her body. She feels that she hasn't lost her attractiveness and competes with her younger girlfriends on an equal footing. And the attention of the males tickles her vagina so much.
What a petite girl. I would also like to do exercises with such a girl, and just take a walk in the park, on a bench to sit, if you know what I mean. It's a pity they don't show her consuming his proteins at the end.