[M]y wi[F]e’s “happy ending”

This is just my second post, thus feedback is very welcome.

This happened a couple of weekends ago. My wife and I went to the beach, in this pandemic affected spring-summer, for a day of relax. Once there, we found a nice spot on a long beach, quite away from other people. We set our towels next to each other and after a while she ask me to rub some sun block on her back. I just started as usual, kneeling next to her and rubbing her back. But being so far from anybody else, I decided to push things a bit further and sat right between her legs, pressing my cock on her butt. Each time I reach for her shoulders I rub my hard on against her, and notice her arousal by the way she raised her hips to push her ass to me.
After a while I finished putting the sun block on her and we changed positions. It was her time to put some sun block on my back. She waisted no time and sat directly on my butt pressing hard against it, then, with a quick move, she pulled my swimwear down leaving my ass exposed and at the same time she moved to the side the bottom of her bikini. I could feel her wet pussy pressing in my buttchecks.
She leaned forward and starting moving her hips quite softly, trying to avoid being notice… but every now and then an excited moan escaped her lips. Before too long she grabbed my shoulders and pressed her labia tight against me, moving in circles, until she couldn’t take it any longer and with another little cry she collapsed on my back, waves of orgasm hitting her body, quite in rithym with the sea just meters away.
At the end she rolled to my side. I felt her juices running between my ass. I pulled up my swimwear and she put in place her bikini to cover her now swolen and wet lips.
A couple of hours later we headed home, to enjoy each other bodies all night long.

Source: reddit.com/r/gonewildstories/comments/kh3t7m/my_wifes_happy_ending