I could hardly understand what you wrote but I would just wait tell they split then swoop in for them seconds going for it now will likely piss both of them off enlise she is a sloot but if u wait tell they break up she will probably need some comfort and that's where u should ease in as a "friend" this will more then likely lead to revenge sex or a host of other possibilities. This solution would only piss off max if he were to find outt. It's best to take these love triangles on like a surgeon or u will loose your buddy and the girl. Most importantly bros before ho's man best to get consent to fuck his girl or "x" but aye to each is own good luck 😀