I [M23] love outdoor activities. Particularly hiking, camping and fishing. I try and get away every weekend if I can and my friend group largely revolves around these activities, with regular camping trips every few weeks etc.

A few weeks back a friend of mine (part of the group) introduced her new friend to us, Sara (not her real name) [F25]. We welcomed Sara and invited her to join our camping/hiking trips which she seemed really excited for. We did a big group hike/picnic nearby on a pretty simple track, only took a couple hours and was more just to hang out. Sara came along and brought her husband and we welcomed him too.

We had a good time hiking up and I got a chance to chat to Sara and get to know her. I couldn't help but notice that her husband was a bit overweight, was struggling and seemed unhappy with having to this. I joked about it to Sara and she laughed saying she forced him to come because she loves being outdoors but he hates it. We ended up chatting almost the entire hike and had a great time.

Overtime Sara came to almost all of our trips, even a few overnight camps but her husband slowly stopped coming. One of trips included 2 friends (a couple), myself and Sara. More were meant to come but cancelled at the last minute, with it just being the 4 of us doing an overnight camp near a river. The couple stuck to themselves of course, and Sara and I were left to chat and we laughed about being 3rd wheels or this being a double date. Our talking turned into a bit of flirting, especially as we had a few drinks around the fire. Once it got a bit later, the couple wanted to go swimming in the river and they suggested we skinny dip. We were completely alone so noone saw the harm in it but I didn't want Sara to feel uncomfortable so I sad "maybe we should wear bottoms". To my surprise Sara objected, stripped down naked and jumped in.

She definitely noticed me staring, and she even put on a bit of a show for me. I stripped down too, trying to hide my now hard dick, but she obviously saw and joked about it. We eventually got out, talked and flirted a lot more before everyone went to bed.

Since then I couldn't get Sara out of my head but I didn't want to make her uncomfortable. I planned a short hike one afternoon but the only person who said she would come was Sara, everyone else was busy. I told her the hike would be an easy one and she should bring her husband along (trying to hide my interest in her). To my delight she said he refused and it would just be the 2 of us.

I'm waiting in the car park (about an hour drive through the forest from our town) when she pulls up. Instead of her usual cargo pants and button shirt she's wearing skin right leggings and a crop top, looking so unbelievably sexy. She greets me with a long hug and we get started. Our conversation almost immediately began with flirting as we got deeper into the forest. She wasn't being at all subtle saying things like

"Being in nature just makes me so horny, but my husband doesn't like hiking so I guess that's your problem now!"

"If we see some water we could go skinny dipping again, I could tell you enjoyed it the first time"

We got to a very isolated spot after about 40 minutes of this before the tension broke and we stayed kissing. Before long she was on her knees sucking my cock. Then I pulled her up and put her against a tree, pulling her leggings and panties down and having the hottest sex of my life.

This has happened a few times since, each time we finish she remarks "I bet my husband regrets not coming on our hike now."