i understand the impact of a soothing permanent better half.....but seriously if you are in twenties and not married yet, who would let go hotties if they have no problem with it?
There's nothing wrong with it imho, as long as you're honest about it and tell the ladies involved that you're not
into a steady relationship, so there's nothing 'in store' for them. Perfectly fine if both parties involved agree on that, it's their business and nobody else's. Not my style personally, but everyone's different in this, and we all differ in our moral values when it comes to this kind of stuff.
It gets rather different when someone is in a steady relationship and still wants to 'mess around', so to speak. There aren't many women who will condone that kind of a behaviour from their BFs, rather the contrary...