I watched my GF and Sara fuck on the beach

My GF & the other chick, i’ll call her “Sara”, had been friends (acquaintances) and they smoke together but they’d link and just hang out, go to the mall and stuff more and more.

They had kissed and made out twice but I didn’t see those as they happened before we started dating.

So anyways one night we all go to like this beach it’s like a man made beach in the city. Not an actual beach more like a huge lake with sand to replicate one.

It’s me, my gf, Sara, and like 8 other people, we are there and it’s late at night, dim light. They started a campfire and had flashlights to use. They were smoking there (i don’t smoke often). They are in bathing suits also. They eventually kind wonder a bit from the campfire and get on a small towel like 15-20 feet away from everyone else, sharing a blunt with each other laughing and talking.

I let them just be because i’m not trying to make things weird I’m just chilling but i’m watching them. Everyone else doesn’t even seem to notice really but i did for sure.

So the roach goes out and I’m watching them and they start to kiss each other. Then they started getting handsy with each other, touching and feeling on each other. Then they were just straight up making out. It got more and more intense like even more than my gf and I get sometimes.

Then Sara got on top of her and started kissing down her neck. She kept kissing down her neck and inbetween her tits and on them at the top of her cleavage then back up to her face. Then my gf returned the favor and got on top. Then she pushed my gf back down and got back on top and started rubbing all down her body she started rubbing her hands through my gf hair then down her face then down her chest and she stopped at her boobs and felt them then down then down over her pussy and stayed there. I could see her hand down there but the way they were facing it was hard to see perfectly. She was playing with my gf pussy over her bikini bottom. Gf legs were spread open willingly allowing Sara to have her fun down there. i saw my Gf face faintly enjoying it. My Gf then returned the favor to Sara and then Sara returned it back again. After a while they came back to everyone else. When we were all leaving I told my Gf that I saw her and Sara “playing” and it looked like they were playing with each other’s pussy. To which my Gf answered “Oh we were, we were doing that”. I asked my gf is she cum and she said she did twice.