I'm thinking of sleeping with a (much older) male friend I've previously come out as gay to? There is also a kinda-girlfriend in the picture
I am very concerned with this. Why are you planning on sleeping with a guy that's taken?
As I have said, I just want to fuck this guy...
I don't care about your sexual preference, but if there's another person involved who might be hurt, it's not right. There lots of eligible, unattached people available.
It's fine. Why are you so worried?
I feel like I am not worried and your sexual activities are your own, but again, you may see yourself in an awkward situation if his girlfriend finds out and you will be ruining a relationship. You are free to date single men that you prefer so that there won't be any awkward issues in the future.