If you're the same guy who has been posting about being intimate with them .. It's too weird.
If he does it to the exclusion of life, yes. Otherwisde it is really no different than orther hobbies.
I don't think any age is too old to do anything you want to do , whether you do it or not the want will still be there - same as cheating, its not necessarily the act that is so hurtful but the mere fact that they wanted to do it.. Just an opinion