Friends with benefits

[Lemon]

First of all, are you sure it's more of an attraction overall than just a lustful one? Sorry if that sounds rude but I couldn't help but notice that you point out that he's everything you want physically and it doesn't sound like you know him personally that well.
Well I'd say if you're interested (and if you get the chance to just talk), ask him some general questions if you haven't already.
Perhaps he'll find that you two might have things in common.

Based off of why you feel like it couldn't be, of course there are risks. Life is risk.
Don't mistake risk with recklessness.
Does he seem the type to welcome a new friend in their lives or one that be more self-centered.
As for age, age is only a number. People at different ages can either act their age, act older, or act more child-like.
If he does seem the type up welcome a new friend, ask him how others fit in and how they go about their daily business.
Long story short: try to show some interest in his lifestyle and try to find ways to become apart of them.
You may meet others in the groups that you may connect with better.
Just be yourself, be honest, and if all else fails, you at least know that we support you here and are always welcome.
Please message me and keep me informed on how things are going. I'd like to help in any way possible.