Stumbled on something interesting

I was on tinder and I matched with this guy based on his pic I didn’t even scroll for more pics or read his bio - turns out, after talking a bit, he’s in a couple and they’re looking for a person for a threesome 😬 I’ve never done anything like that but I’m a bit intrigued tbh!! I always say I’ll try everything once, cause you won’t know if you don’t try

Any of you ladies done anything like this? How was it?