Yo. Yes, steer clear. For many reasons. The main one being he's a freakin' lazy moron. A dude should know better. Women talk. Which is how I'm assuming you know he's been calling your friend. Women talk, and pass along intelligence like a network of love spies. So either he's a moron, or he has a death wish. Or both. Did I mention he's lazy? Dude can't get off his ass and find a woman in another area code? Or, at least, another part of town?
Whateverrrr.
Don't start a relationship with him. If you like casually hooking up, then go for it. Just know out of the gate that he's a faithless dumbass. If you date him, and he breaks your heart, just remember you were warned.
I like the freakin lazy dumbass tag. I'll click on it and see what else comes up.
OR A HORNY NE'ER-DO-WELL!
MY GUY FRIEND DID THAT SO HE COULD TRY TO EVENTUALLY GET A THREESOME WITH THE TWO GIRLS!! (they were bisexual, and he thought divide and conquer, then get all three in the same room and maybe something sexy will happen).
TRUE STORY! I don't know if it worked out for him though.
THE SAME THING HAPPENED TO MY FRIEND!
hahahah that just goes to show ya that all men really do think alike....