Have you ever thought about someone else while having s*x with your partner ?

So lately I’ve been curious and interested into this swingers/ cuckold lifestyle , while alone I’ve had thoughts about my partner being with someone else and I being with someone else . Last time while we were having the deed , I just had a thought of few seconds that there’s actually someone else whom I’m f*cking and not her (it was a friend of ours ) . Nd it was kinda hot and made me cum fast .