Unless she wanted to participate, which by all means.
That said, I have been to swingers clubs with my SO and I have fucked other women and she has fucked other men and I LOVED IT. I mean, I FUCKING LOVED IT. In a typical night at a swinger's club, I would have intercourse with her, then another woman, then another woman after that. Likewise, she would have sex with at least as many men. I've seen other guy's cocks glide into her pussy with her feet in the air and it turned me on for months. Unfortunately, she seems to have gone cold on it and it has deeply hurt me sexually. (Some fucked up sense of puritan guilt about what a relationship should be about.) Up until then, I thought I had the perfect sex life. PERFECT. I had found nirvana. There as no need to hobby as we cheated on each other together and it was incredibly erotic. (She has no idea how disappointed I am.) She completely let me down and (ironically) she has driven me back into the hobby. Before, while swinging, I had completely given up the hobby. There was no need.
But as far as hobbying solo goes, why the fuck would I do that?
No good will come of it.