(18)yo [F]wb teases young [M] in sauna

Last year my Fwb and I used a rainy weekday to go to the local sauna/spa area.
It’s a very nice location with an indoor pool with a steam room and an outdoor bath, whirlpools, showers and of course, several saunas. It is located right by a lake, which makes jumping into the cold lake right after the sauna very fun.
The whole area is clothes free, so most people walk around either naked or wrapped in a towel.

On this particular date not that many people were visiting, so we had some areas for ourselves which we used a bit for fooling around but always cautious not to get caught.
It was already late afternoon when we entered one of the hot saunas, after swimming in the cold lake. When we entered we saw someone sitting across the room. It was a guy around the age of my Fwb, sitting on top of his towel, trying not to look at us entering. After a muffled hello, we sat down across him on the bench. We were still both very cold from the lake, so when we got warmer my Fwb decided to open her towel to reveal her hot, shaved and tanned young body(see our profile).
The eyes of the guy immediately widened, trying not to directly stare at her sweaty tits. She closed her eyes smiling and enjoying the attention from the young men. He on the other hand moved his leg to cover up his now semi-hard growing dick. Tho the light in the sauna was dimmed, it was still visible what was going on. When she realised what she’d caused, she decided to tease him a bit. We both like teasing and a bit of pda, which the sauna is a great place to do so, in the right situations.
She touched herself pushing the sweat from her body while squeezing her tits doing so. It was such a tease i started getting hard too, fortunately still wrapped in my towel.
The guy across the room on the other hand was visibly nervous trying to hide his now surprisingly big hard-on, which didn’t worked as well as he tried to.
This was the moment when she just pulled up her legs, giving him a great view on her glistening shaved pussy, perfectly visible cause of her gently spreaded legs.
This seemed to be to much for him, because he with a red head, stood up after a minute just not caring about his erect member anymore, took his towel and left the sauna saying a shy and silent bye towards her.
After he left she looked at me with a mischievous smile, pulling my towel away kissing me while stroking my rock hard dick.
She got up kneeling down on my lap, sliding my dick in her with ease. Teasing him made her so wet and horny she immediately rode me fast and rough filling the sauna with the sound of our bodys clapping together and her soft moans. Because of the heat we couldn’t finish without the risk of passing out, so we left for the lake to cool off, still horny for the next shenanigans.
Maybe I’ll write about them too sometime

Source: reddit.com/r/gonewildstories/comments/i6hlv2/18yo_fwb_teases_young_m_in_sauna